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Mastering Racket

From First Steps to Language-Oriented Programming

Mastering Racket
This book is 100% completeLast updated on 2026-08-18

Discover what makes Racket more than just another programming language. Mastering Racket takes you from the fundamentals to macros, concurrency, web development and custom language design through practical, runnable examples. Learn to think in Racket and unlock the ideas that make it such a powerful tool for building software.

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About

About

About the Book

This book takes you from your first Racket expression through advanced metaprogramming and language design. You will learn the core language, functional and object-oriented paradigms, macros, contracts, concurrency, web development, and how to create custom languages on top of Racket. Every chapter builds on the last with complete, runnable examples that demonstrate real-world usage patterns. By the end you will understand not only how to program in Racket but why it is designed the way it is and when its unique strengths make it the right tool for the job.

Author

About the Author

Steve Publications

Steve is a technology professional with more than 20 years of experience in software development, server infrastructure, cybersecurity, vulnerability research and reverse engineering. Throughout his career, he has designed, secured, analyzed and tested complex software and infrastructure, with a particular focus on understanding how systems fail and how they can be made more secure.

Outside of work, Steve enjoys sharing knowledge with the technology community. He collaborates with researchers, industry experts and technology professionals to write practical books covering software development, cybersecurity, cloud computing, networking, DevOps, artificial intelligence and enterprise technologies. His books focus on practical learning through clear explanations, real-world examples and hands-on exercises. With more than two decades of industry experience, his goal is to help IT professionals, students and technology enthusiasts build useful skills and stay current in a rapidly changing industry.

We believe readers deserve to know how our books are created. Most of our authors are not native English speakers, so we use AI to help translate, proofread manuscripts, fix grammar, improve sentence structure and make technical explanations easier to read. AI is used as an editing tool only. It does not replace the research, technical knowledge or hands-on experience behind our books. Some of our authors also prefer to remain anonymous for privacy or professional reasons. In those cases, we publish their work under a different name. The author's name may be different, but the quality of the content and our review process remain the same.

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Contents

Table of Contents

From First Steps to Language-Oriented Programming

Introduction: Why Racket?

  1. The Racket Promise: One Language to Rule Them All
  2. Where Racket Shines and Where It Does Not
  3. A Brief Tour of What You Will Build
  4. How to Read This Book

Chapter 1: Origins and Philosophy

  1. From Lisp to Scheme to PLT Scheme to Racket
  2. The Homage Report: Designing a Language for Language Design
  3. Homoiconicity and Code as Data
  4. The Read-Eval-Print Loop and Interactive Development
  5. When Racket Is the Right Tool

Chapter 2: Getting Started with Racket

  1. Installing Racket on Your System
  2. DrRacket: The Integrated Development Environment
  3. The REPL and Interactive Exploration
  4. Your First Programs: From Hello World to Simple Calculations
  5. Project Structure and File Organization

Chapter 3: Expressions, Values, and the Language Core

  1. S-Expressions: Parentheses as Structure
  2. Literals: Numbers, Strings, Characters, Booleans, Symbols
  3. Variables, Definitions, and Bindings
  4. Functions: Definition, Application, and Arguments
  5. The Evaluation Model: How Racket Computes

Chapter 4: Control Flow and Recursion

  1. Conditionals: cond, if, when, unless, and case
  2. Recursion as the Foundation of Repetition
  3. Tail Calls and Efficient Recursion
  4. Iteration with map, filter, foldl, and foldr
  5. Pattern Matching for Structural Decomposition

Chapter 5: Data Structures and Collections

  1. Pairs and Lists: The Fundamental Building Blocks
  2. Vectors for Indexed Access
  3. Strings and Characters in Practice
  4. Hash Tables and Sets for Efficient Lookup
  5. Choosing the Right Collection for the Job

Chapter 6: Structured Data, Contracts, and Safety

  1. Defining Structures with struct
  2. Accessors, Mutators, and Predicates
  3. Contracts: Runtime Guarantees Between Modules
  4. Structured Error Handling with Exceptions

Chapter 7: Functional Programming in Racket

  1. Higher-Order Functions: Functions That Take Functions
  2. Closures and Lexical Scoping
  3. Immutability and Side Effects
  4. Functional Design Patterns in Racket
  5. When to Mutate and When Not To

Chapter 8: Modules, Libraries, and Organization

  1. The Module System: require and provide
  2. Creating Your Own Libraries
  3. Language Pragmas and #lang Choices
  4. Package Management with raco pkg
  5. Documentation with Scribble

Chapter 9: Macros and Metaprogramming

  1. What Macros Are and Why They Matter
  2. Syntax Objects and the Quote/Unquote Model
  3. Writing Your First Hygienic Macro
  4. Pattern Matching in Macro Definitions
  5. Building Domain-Specific Language Constructs

Chapter 10: Object-Oriented Programming in Racket

  1. Classes and Objects: The Basics
  2. Inheritance and Super Calls
  3. Interfaces and Mixins for Flexible Design
  4. When to Use OOP in Racket

Chapter 11: Concurrency, Parallelism, and Performance

  1. Threads and Lightweight Concurrency
  2. Synchronization: Semaphores, Mutexes, and Channels
  3. Futures and Parallel Computation
  4. Parallel Threads in Racket 9.0+
  5. Profiling and Performance Tuning
  6. Optimizing Hot Paths in Racket

Chapter 12: Input/Output, Files, and Networking

  1. Ports and Streams for I/O
  2. Reading and Writing Files
  3. Command-Line Applications with racket/cmdline
  4. Networking Basics: TCP and UDP

Chapter 13: Web Development and Databases

  1. Building a Web Server with racket/web-server
  2. Routing and Request Handling
  3. Templates and Dynamic HTML Generation
  4. Database Access with DB Libraries
  5. A Complete Small Web Application

Chapter 14: GUI Development and Desktop Applications

  1. The racket/gui Framework Overview
  2. Building Windows and Dialogs
  3. Widgets, Layouts, and Event Handling
  4. A Small Desktop Application Example
  5. When GUI Development in Racket Makes Sense

Chapter 15: Language-Oriented Programming and DSLs

  1. What Is a Language in Racket?
  2. Creating Your Own #lang
  3. Custom Readers and Syntax Extensions
  4. Building a Practical DSL from Scratch
  5. The Philosophy of Language-Oriented Programming

Conclusion: Architectural Guidance and Next Steps

  1. Idiomatic Racket Design Principles
  2. Project Architecture at Scale
  3. Performance and Maintainability Practices
  4. Deployment and Distribution Options
  5. Further Learning Resources and Community
  6. Quick Reference: Key Forms, Functions, and Conventions

References

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