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Featured Leanpub Book

Mastering Ontology Engineering with Protégé and Pizza.owl

From Semantic Foundations to Executable Knowledge Architecture (EKA)

Xiaoqi Zhao

Transform the classic pizza.owl tutorial into a launchpad for cutting-edge semantic engineering! This hands-on guide bridges the gap between theory and practice, showing you exactly how to build ontology-based meta-models and deploy executable knowledge graphs. Master the "Diagramming as Code" methodologies of the Executable Knowledge Architecture (EKA) framework through a continuous, live-updated learning journey.

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The Shelf

  • Master Guide to Cyber Security

    TW

    Modern cybersecurity is no longer just about firewalls and antivirus. It is about architecture, governance, secure software delivery, cloud resilience, Zero Trust, AI security, and operational discipline.The Master Guide to Cyber Security brings these domains together into one practical enterprise-focused reference designed for modern security professionals, architects, engineers, and technology leaders.Built around real-world frameworks, secure-by-design principles, and current threat realities, this guide provides a structured roadmap for building secure systems in cloud-native and enterprise environments.

  • Design Patterns in Modern Java

    Jitin Kayyala

    Java has changed. Have your patterns kept up?The Gang of Four wrote their landmark patterns in 1994 — when Java didn't exist, generics were a decade away, and "concurrency" meant carefully managing a handful of platform threads. Thirty years later, Java 21 through 25 has transformed the language: records replace boilerplate classes, sealed interfaces model closed type hierarchies with compiler enforcement, pattern matching eliminates entire categories of unsafe casting, and virtual threads make a million concurrent tasks not just possible but routine.Modern Java Design Patterns bridges that gap. Every classic pattern is shown first in its original form, then systematically rebuilt with the language features that exist today. The result is code that is shorter, safer, more expressive, and immediately recognisable to any team working on a modern Java codebase.

  • Build Your Own Coding Agent

    J. Owen

    Skip the black-box frameworks. Build a production-grade AI coding agent from scratch in pure Python - cloud or local, tested with pytest, all in a single file.

  • Residues: Time, Change, and Uncertainty in Software Architecture.

    Barry M O’Reilly

    Residuality Theory is a new way to think about the design of software systems that explains why we experience design the way we do, why certain things seem to work only sporadically, and why certain architects get it right so often regardless of which tools they use. A new, scientific approach is defined that fuses Software Engineering, Complexity Science, and Philosophy to produce an entirely new way to think about how to design software. The result is a theoretical base that allows architecture to finally become its own discipline.

  • IT Enterprise Architecture Management

    Wolfgang Keller and Florian Oelmaier

    Software and infrastructure only create value when they pull in the same direction as the business. This book shows IT leaders how to get there: from shaping IT strategy and the architecture roadmap to the daily discipline of IT and architecture governance, all built on a pattern-based approach that adapts to your organization rather than forcing it into a template.Grounded in established frameworks such as TOGAF, COBIT, and ITIL, it pairs solid fundamentals with numerous real-world examples — and gives growing weight to compliance and IT security, now central concerns of any IT management agenda.This English edition is based on the German standard work on the subject, fully revised in its 4th edition (late 2024). It is current with TOGAF 10 and reflects recent developments in business-oriented enterprise architecture — including the open-source tool EDGY and patterns for digital strategy — alongside the latest trends in IT risk management and cybersecurity architecture.

  • Advanced GPU Assembly Programming Second Edition

    gareth thomas

    Uncover the fundamentals of GPU architecture and assembly programming with Advanced GPU Assembly Programming, a resource designed for enthusiasts and professionals who want to explore the intricate workings of modern GPUs. This book is not a step-by-step manual but a gateway to understanding GPU architecture and assembly programming at a foundational level. It’s ideal for readers who are ready to invest their own effort to experiment and grow their expertise.

  • Retrieval-Augmented Generation

    Jeroen Herczeg

    The engineer's guide to RAG systems that survive a deploy.

  • Build Your Own Coding Agent

    J. Owen

    Skip the black-box frameworks. Build a production-grade AI coding agent from scratch in pure Python - cloud or local, tested with pytest, all in a single file.

  • Be a Learning Machine

    Alberto Souza

    You’ll just need the Five Essential Elements of Learning Through five essential elements, you’ll gain the ability to learn anything deeply—no matter how complex the subject. These five pillars of effective learning will become lifelong tools, guiding you every time you set out to truly master new knowledge and retain it permanently. If you're ready to stop passively consuming information and start truly mastering it, this book is for you.

  • Reliable Generative AI

    George Tome

    Reliable Generative AI bridges business use and technical architecture. It teaches the foundations of prompt design, RAG, agentic workflows, tool use, structured outputs, safety patterns, and evaluation without assuming the reader is a software engineer. The focus is practical: understanding how AI workflows fail, how to design around those failures, and how to build systems that professionals can trust.

  • Under The Hood

    Ramchand Kumaresan

    A practical, project-driven manual for engineers who want to understand how modern language models are built — and where they fail — by writing every layer themselves. From a scalar autograd engine to RLHF to fused specialists, in 35 hands-on projects with deliberate sabotage experiments. Build it. Break it. Measure it.

  • Logic for Programmers

    Hillel Wayne

    Not just for mathematicians and detectives! Learn the basics of logic and its many applications, including advanced testing, constraint solving, function composition, and code proofs. Over 50 exercises and 20 sample programs are included. No prior math background required!

  • Architectural Metapatterns

    Denys Poltorak

    You’ll find inside:- An atlas of system topologies.- A compendium of architectural patterns.- One of the largest and most cohesive pattern languages.

LEANPUB READER MEMBERSHIPS

A Reader Membership gets you hundreds of free books, and credits to use to buy the rest ... often at a huge discount!

Many books which regularly cost much more than $25 can be bought for just one credit, so a Reader Membership can save you money as well as getting you access to about 2000 books which are free with membership. So, the real question is: How many credits do you want?

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Top Books

  1. Фундамент архітектури
    База, якої вас ніколи не вчили
    Сергій Немчинський

    Чому проєкт-цукерочка через рік перетворюється на непідтримуване пекло? Тому що вас ніколи не вчили базі. Ця книга — єдина система координат, яка нарешті збере ваші розрізнені знання про ООП, GRASP, SOLID та GoF в одну цілісну картину.

  2. The SysML v2 Book
    Practical Insights and Comprehensive Reference
    Tim Weilkiens and Vince Molnár

    Learn SysML v2 with the ultimate guide for all skill levels in MBSE. Authored by insiders, it's your key to unlocking the full potential of system modeling and a passport to mastering your MBSE.

  3. OpenIntro Statistics
    Includes 1st, 2nd, 3rd, and 4th Editions
    OpenIntro, Christopher Barr, Mine Cetinkaya-Rundel, and David Diez

    A complete foundation for Statistics, also serving as a foundation for Data Science. Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects. More resources: openintro.org.

  4. The Sovereign Engineer
    AI Literacy for Software Professionals
    Russ Miles

    AI is an amplifier. It magnifies whatever engineering discipline — or lack of it — already exists, which means the bottleneck was never AI's capability; it is the collaboration space you design around it. This book is a six-level progression from early AI panic to sovereign engineering: the discipline of designing the environment in which human and artificial intelligence produce work worth keeping. It moves past prompting into the practices that compound — verification, habitat engineering, specification-first development, and the platform discipline that scales the practice across teams. The habitat is yours to design. Let's build it well.

  5. Logic for Programmers
    Hillel Wayne

    Not just for mathematicians and detectives! Learn the basics of logic and its many applications, including advanced testing, constraint solving, function composition, and code proofs. Over 50 exercises and 20 sample programs are included. No prior math background required!

  6. Leading Effective Software Teams
    Systems Thinking for Engineering Managers
    Francisco Trindade

    As an engineering leader, you will never get to the bottom of the list by working faster. Learn to lead your team as a single system across product, engineering, and people.

  7. Windows 11 Field Guide
    2026 Edition
    Rafael Rivera and Paul Thurrott

    The Windows 11 Field Guide is a full-length e-book about the latest version of Microsoft Windows, aimed at those users who will upgrade from Windows 10 or acquire Windows 11 with a new PC.

  8. CISM: The Last Mile
    Your guide to the finish line
    Pete Zerger

    This book covers every topic in the latest CISM exam syllabus, approaching topics from the ISACA perspective. It's 325+ pages organized in a format that makes it easy to drill down on specific exam domains and concepts at-a-glance, making it an essential exam resource for anyone who aims to prepare for the CISM exam without wasting time or money.

  9. CISSP: The Last Mile
    Your guide to the finish line
    Pete Zerger

    The book covers every topic in the latest CISSP exam syllabus, organized in a format that makes it easy to drill down on specific exam domains and concepts at-a-glance, making it an essential exam resource for anyone who aims to prepare for the exam without wasting time or money.

LEANPUB ORGANIZATION MEMBERSHIPS

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Book credits, course credits, and Free With Membership access for your team. Because Leanpub authors publish updates with one click, our AI, software, and business titles stay more current than print — so your team always learns from the latest material.

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Featured Leanpub Bundle

Top Bundles

  1. Residues and The Philosophy of Software Architecture
    Barry O’Reilly

    This bundle includes the books “Residues: Time, Change and Uncertainty in Software Architecture” and “The Architect’s Paradox: Uncertainty and the Philosophy of Software Architecture” by Barry M O’Reilly. The books complement each other, with Residues giving a practical description of how to apply residuality theory and The Architect’s Paradox...

  2. The DevOps Toolkit (Kubernetes, Helm, ArgoCD, Terraform)
    Kirshi Yin | Curious Devs Corner

    The DevOps Toolkit Bundle Learn Kubernetes, Helm, Terraform, and Argo CD in one place What's Inside?This bundle brings together four practical, step-by-step ebooks:Master Kubernetes from ScratchMaster Helm FastTerraform Quickstart: The Ultimate Beginner’s GuideMaster GitOps with Argo CDEach book is hands-on, structured, and filled with examples,...

  3. Modern GPU Architecture and Programming Complete Bundle
    gareth thomas

    A 7-book GPU collection covering architecture, CUDA, assembly, PTX, SASS, and parallel computing. Learn how to move from high-level programming to low-level execution and optimize performance across modern GPU systems.

  4. Haskell Wizard
    Alejandro Serrano Mena

    Become a real Haskell wizard with these two books! On the one hand, get your hands dirty with every major library in the ecosystem. On the other hand, climb the ivory tower and deepen your knowledge of monads.

  5. C++20, C++17, and Move Semantics
    Nicolai M. Josuttis

    C++20, C++17, and MoveSemantics - The Complete Guides

  6. Longitudinal Data Analysis Using R +
    Alexandru Cernat

    Longitudinal Data Analysis in R + combines a comprehensive, hands-on guide with a concise cheat sheet to give you both depth and clarity. Learn how to prepare, explore, and model longitudinal data using real-world examples in R—while always having a clear map of key concepts, commands, and models at hand.

  7. Enterprise AI Agents in Production: Build and Secure Them
    Thomas De Vos

    Two practical books for teams building enterprise AI agents in production. Start with Claude Code, tools, MCP, evals, observability, and production agent workflows. Then secure those agents with bounded autonomy, AgentSecOps, RAG governance, identity controls, audit evidence, and regulatory readiness.

  8. Java Starter
    Jitin Kayyala
    No Description Available
  9. Designing Trading Systems Series
    Code Maverick
    No Description Available

Interviews with Leanpub authors and special guests

The Leanpub Podcast

Hosted by Leanpub co-founder Len Epp

In The Leanpub Podcast, Leanpub co-founder Len Epp interviews authors and special guests about their lives & careers, their areas of expertise and the issues of the moment, and their experiences as writers. Every episode is deeply researched and covers areas that are equally of human interest, general interest, and professional interest.
Featured Leanpub Podcast Interview

Danielle Boyce, Author of Ten Habits of Great Data Analysts

Episode: #331Runtime: 58:18Released: 2026-06-01

Dr. Danielle Boyce - In this episode of the Leanpub Podcast, Len Epp interviews Dr. Danielle Boyce, author of Ten Habits of Great Data Analysts: Practical Tips from My Three Decades in the Field. Danielle shares lessons from a career spanning public health, biomedical informatics, and data science, discussing what separates great analysts from merely technical ones. They explore communication, curiosity, collaboration, data storytelling, career development, and the human side of analytics, along with Danielle’s experience writin

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Featured Leanpub Course

Top Courses

  1. Stratospheric - From Zero to Production with Spring Boot and AWS
    Hands-on online course to learn all you need to know to get a Spring Boot application into production with AWS.
    Philip Riecks, Björn Wilmsmann, and Tom Hombergs

    Hands-on online course to learn all you need to know to get a Spring Boot application into production with AWS. Visit our landing page for a tour of the contents. Make sure to get familiar with all available bundle options before enrolling.

  2. The Hundred-Page Language Models Course
    Andriy Burkov

    Master language models through mathematics, illustrations, and code―and build your own from scratch! This course includes nearly three hours of exclusive video interviews with the author, covering questions related to each of the six lessons included in the course.

  3. Generative AI in a Nutshell
    How to Survive and Thrive in the Age of AI
    Henrik Kniberg

    This is a fast-paced, practical, and visual guide to the strange new world of Generative AI. It is like an extended version of Henrik's viral video with the same name.

  4. Patterns of Application Development Using AI
    Obie Fernandez

    Unlock the power of AI in your applications with this groundbreaking course on AI-driven application architecture. Discover practical patterns and principles for building intelligent, adaptive, and user-centric software systems that harness the potential of large language models. This course includes exclusive video interviews with the author.

  5. Microservices Masterclass
    David Farley and CourseAI

    Microservices are a great approach for building software at scale. But although the ideas at the root of microservices may sound simple, this is not a simple approach. There are several big traps along the way, and it's important to avoid them...

  6. Manifest Android Interview Course
    The ultimate guide to cracking Android & Compose technical interviews.
    Jaewoong

    To ace your next Android developer job interview, focus on truly understanding the concepts, not just memorizing answers, and practicing how to apply them. With over 250 quiz questions, 370 practical and follow-up questions with full answers, and 60+ pro tips, this course helps you sharpen skills, understand the why, and prepare for real-world technical challenges. ISBN: 979-8285926436

  7. Practical Kotlin Deep Dive Course
    Unlocking the 'How' and 'Why' behind Kotlin fundamentals and internal mechanisms.
    Jaewoong

    Takes you from "how to use Kotlin" into "how Kotlin really works," revealing internal implementations, demystifying bytecode and compiler behavior, and uncovering the internals that shape the language. With hands-on Code Playgrounds for immediate practice and 158 interactive assessments to test and reinforce your understanding, this course doesn't just show you why everything is the way it is, it challenges you to prove you've mastered it.  ISBN: 979-8243872744 

  8. Machine Learning Made Simple
    8 Pillar Machine Learning Algorithms in Python
    Finxter and Lukas Rieger

    This course gives you an intuitive understanding of the eight most important machine learning algorithms. It helps you get started using them in your own projects NOW -- in a single line of Python code. After finishing this course, you'll be able to select, understand, and implement the top 8 machine learning algorithms in your own projects.

  9. The Kubernetes Course
    Nigel Poulton

    This course is based on the 2025 edition of the best-selling Kubernetes book, that has been fully updated for the latest versions of Kubernetes and the latest industry trends. You won't find a better and more up-to-date book-based course on Kubernetes. Hand-crafted over the past 8 years by best-selling author Nigel Poulton.

Featured Leanpub Track

A Simple Path to Python Success

Python is the fastest-growing major programming language on the planet. This practical course set will teach you Python in a hands-on, highly practical way that guarantees your success. All you need to go from zero to completing your own Python projects in a relaxed, student-centric, and fun environment. Create yourself a new skill that'll bring...

This track includes the following 7 courses...

  1. Machine Learning Made Simple
  2. The Smartest Way to Learn Python Regex
  3. Learn Python the Practical Way [Coding Interview Exercises]
  4. Python Exercises Collection
  5. The Complete Guide to PyCharm
  6. Your Python One-Liner Superpower
  7. Python Lambdas Deep Dive
Learn More

Top Tracks

  1. AI Masterclass
    Henrik Kniberg, Obie Fernandez, and Andriy Burkov

    About the Track: AI Masterclass Artificial Intelligence is reshaping the way we live, work, and build technology. The AI Masterclass Track brings together three powerful courses from world-class experts to give you a comprehensive, practical, and hands-on education in the age of AI. Whether you want to understand the big picture, apply AI...

  2. 14 C# Courses Bundle
    EngineerSpock

    Taking this bundle, you'll get a comprehensive set of courses that cover almost the whole surface of the .NET framework.The big topics that are covered:WPFMVVMSpecFlow and SeleniumLINQMultithreading and Parallel ProgrammingC# in Depth: Puzzles and GotchasAlgorithms and Data Structures in C#VS and R#and engineering practices:Unit Testing with...

  3. Kotlin for developers
    Marcin Moskała

    This is the complete track to learn about essential Kotlin features and get ready for working in Kotlin in daily basis. It starts from essentials, and on the way reaches advanced topics like efficient collection processing or DSL creation.

  4. Senior Android Developer Interview Prep Track
    Jaewoong

    Senior Android interviews test real understanding, not memorized answers. This track goes beyond “how to use Kotlin” into how Kotlin and Android actually work under the hood, including compiler behavior and internal concepts. With hands-on playgrounds and 400+ quiz and interview-style questions, it helps you practice reasoning through problems and confidently tackle senior-level technical interviews.

  5. 7 Course-Bundle: Shut Up and Code Python + PyCharm + Coding Interview + Machine Learning + One-Liners + Regex + Lambdas
    Finxter, Lukas Rieger, and Shubham Sayon

    "Shut up and code." Laughter in the audience. The hacker had just plugged in his notebook and started sharing his screen to present his super-smart Python script. "Shut up and code" The letters written in a white literal coding font on black background was the hackers' home screen background mantra. At the time, I was a first-year computer...

  6. Real World Python
    Lukas Rieger and Finxter

    Learn Python the Practical Way - In this course you learn all the basics of the Python programming language. It contains exercises, explanatory videos, an example solution and a quiz. This will enable you to apply your skills to a wide range of real world problems.A collection of more Python exercises - Exercises with solutions to continue...

  7. A Simple Path to Python Success
    Finxter, Lukas Rieger, and Shubham Sayon

    Python is the fastest-growing major programming language on the planet. This practical course set will teach you Python in a hands-on, highly practical way that guarantees your success. All you need to go from zero to completing your own Python projects in a relaxed, student-centric, and fun environment. Create yourself a new skill that'll bring...

  8. Design and Architecture Fundamentals in C#
    EngineerSpock

    Taking this course bundle, you'll learn:SOLID principles (SRP, OCP, ISP, LSP, DIP) in-depthMeta principles: DRY, KISS, YAGNI, SoC, CQS, Law of Demeter, PoLADependency Injection in Depth: IoC or DI containers, best practices, and anti-patternsFunctional Programming in C#: purity and side effects, functional C# features, immutability,...

  9. Game Studio Starter Kit (6 Game Collection)
    Stephen Gose

    This is the perfect Game Studio starter kit for launching your online dream business. This kit contains 6 tutorials books to help you create 9 different online game mechanics. You could have all 9 games ready in a day for each game. Start your Game Studio today.

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Leanpub has already paid out $15,472,848.95 to authors. Whether you write in Markdown or upload PDF/EPUB files, Leanpub’s intuitive publishing tools simplify the process. Use our in-browser editor or sync with GitHub or Dropbox and publish your ebook with a single click. Plus, you decide when to release—during the writing process or upon completion.

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As an academic, I like Leanpub because it lets me write and get my ideas out there quickly. Leanpub is simply the best place for publishing my books.

Roger D. Peng
Associate Professor of Biostatistics at the Johns Hopkins Bloomberg School of Public Health
Kick Off Your Book Project in 2 Hours with Leanpub Founders

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Kick Off Your Book Project in 2 Hours with Leanpub Founders

Live 2-hour workshop on Zoom. You'll leave with a real book project, progress on your first chapter, and a clear plan to keep going.

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LIVE 2-HOUR ZOOM WORKSHOP

GhostAI Workshop: 2-Hour AI Editing Tools Workshop with Leanpub Founders

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Book Bootcamp 1-on-1: 6 Weeks of Direct Founder Coaching to Finish Your Book

PRIVATE 1-ON-1 BOOK PROGRAM WITH PETER ARMSTRONG

Book Bootcamp 1-on-1: 6 Weeks of Direct Founder Coaching to Finish Your Book

Six weeks of weekly 90-minute private sessions with Peter Armstrong, founder of Leanpub. It doesn't matter whether your book is half done or if you're stuck at page two. Win your money back as a $3,499 service credit that fully covers GlobalAuthor Pro when you finish.

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We're authors too, and we built Leanpub to be the platform we would love to use. It turns out, we weren't alone...

  • As an academic, I like Leanpub because it lets me write and get my ideas out there quickly. Leanpub is simply the best place for publishing my books.

    Roger D. Peng
    Associate Professor of Biostatistics at the Johns Hopkins Bloomberg School of Public Health

  • Leanpub's book-creation tools allowed me to focus on creating the types of books I wanted to write instead of worrying how to create my own book publishing toolchain. I have never regretted using Leanpub to publish my ebooks.

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    The Grumpy Programmer

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    Author, Multitenancy with Rails

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    Taylor Otwell
    Creator Of Laravel

  • Leanpub is a game changer for independent authors, removing the hassles associated with formatting, book production, and electronic sales, freeing up the time to do what we do best: write.

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    Author, Easy Laravel 5

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    Growing Agile

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    Author, Build APIs You Won't Hate

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    Author, The Node Beginner Book

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    Karen Greaves
    Growing Agile

  • I earn more royalties from my books on Leanpub than I do with well established publishers or through Amazon (which I publish on thanks to Leanpub's mobi conversion).

    Paul Bradshaw
    Paul runs the MA in Online Journalism at Birmingham City University

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    Author, Software Architecture for Developers

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    Daniel Root
    Author, Trello Dojo

  • With Leanpub, the first person who purchased my book for $9.99 almost two years ago (and only received a preface, and two short intro chapters) has had access to almost every bit of knowledge I've gained in those two years, and *that's* the value.

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    Author, Ansible for DevOps

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    Author, JavaScript Allongé, the "Six" Edition

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    Author of Writing APIs With Lumen

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