Clean Code: A Handbook of Agile Software Craftsmanship (Robert C. Martin Series)

Bestselling author Robert C. Martin brings new life and updated code to his beloved Clean Code book

With Clean Code, Second Edition, Robert C. Martin (“Uncle Bob”) reinvigorates the classic guide to software craftsmanship with updated insights, broader scope, and enriched content. This new edition–a comprehensive rewrite of the original bestseller–is poised to transform the way developers approach coding, fostering a deeper commitment to the craft of writing clean, flexible, and maintainable code.

The book is divided into four parts: basic coding practices, design principles and heuristics, high-level architecture, and the ethics of craftsmanship. It challenges readers to critically evaluate code quality and reassess their professional values, ultimately guiding them to produce better software. This edition includes expanded coverage of testing disciplines, design and architecture principles, and multiple programming languages.

Design and architecture principles integrated with coding practicesCoverage of more languages, including Java, JavaScript, Go, Python, Clojure, C#, and CCase studies for practical exercises in code transformationTechniques for writing good names, functions, objects, and classesStrategies for formatting code for maximum readabilityComprehensive error handling and testing practicesProductive use of AI tools for codingSoft skills and the ethics of programmingSOLID principles of software designManagement of dependencies for flexible and reusable codeProfessional practices and trade-offs in object-oriented design

Clean Code, Second Edition, underscores the importance of evolving software craftsmanship to meet contemporary challenges. Offering a deeper exploration of testing, design, and architecture, alongside universal coding principles applicable across various programming languages, this edition is set to be an indispensable resource for developers, engineers, and project managers. It not only aims to enhance technical skills but also to cultivate a professional ethos that values clean, flexible, and sustainable code.

Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.

From the Publisher

What can readers expect to learn?

Discover proven techniques for writing clear, maintainable, and efficient code, with practical strategies for refactoring, naming, and structuring functions and classes. Gain insights into identifying and eliminating code smells, fostering collaborative development, and implementing agile principles in daily workflows. Learn how to create robust unit tests, manage dependencies, and build software that stands the test of time—empowering teams to deliver higher-quality solutions with confidence and consistency.

Ideal for software developers, engineers, technical leads, and coders of any experience level committed to elevating code quality and fostering agile practices. Perfect for professionals in enterprise, startup, or open-source environments who value maintainable, efficient, and collaborative software solutions. Also highly relevant for computer science students, educators, and anyone passionate about mastering the principles of clean, professional coding in real-world projects.

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About the author

Robert C. Martin (“Uncle Bob”) is a renowned software engineer, consultant, and thought leader with over five decades of experience in the industry. As a co-author of the Agile Manifesto and founder of Uncle Bob Consulting, he has shaped modern software development practices worldwide. Martin’s influential works, including Clean Code, Clean Agile and Clean Architecture, are widely adopted by professionals seeking excellence in code quality and agile methodologies. His dedication to craftsmanship and his engaging presentations have earned him international recognition, making him a trusted authority in software engineering.

Publisher ‏ : ‎ Addison-Wesley Professional
Publication date ‏ : ‎ October 18, 2025
Edition ‏ : ‎ 2nd
Language ‏ : ‎ English
Print length ‏ : ‎ 672 pages
ISBN-10 ‏ : ‎ 0135398576
ISBN-13 ‏ : ‎ 978-0135398579
Item Weight ‏ : ‎ 2.48 pounds
Dimensions ‏ : ‎ 7 x 1.35 x 9.13 inches
Part of series ‏ : ‎ Robert C. Martin Series
Best Sellers Rank: #64,276 in Books (See Top 100 in Books) #6 in Software Testing #6 in Software Design & Engineering #24 in Software Development (Books)
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