书中描述了Python程序的基本构件：类型、操作符、语句、函数、模块、类以及异常，此外还介绍了更多高级主题，包括复杂的实例，最后讲述了如何使用Python定制库来创建大型程序。

Portable, powerful, and a breeze to use, Python is ideal for both standalone programs and scripting applications. With this hands-on book, you can master the fundamentals of the core Python language quickly and efficiently, whether you're new to programming or just new to Python. Once you finish, you will know enough about the language to use it in any application domain you choose. "Learning Python" is based on material from author Mark Lutz's popular training courses, which he's taught over the past decade. Each chapter is a self-contained lesson that helps you thoroughly understand a key component of Python before you continue. Along with plenty of annotated examples, illustrations, and chapter summaries, every chapter also contains Brain Builder, a unique section with practical exercises and review quizzes that let you practice new skills and test your understanding as you go.This book covers: Types and Operations, Python's major built-in object types in depth: numbers, lists, dictionaries, and more; Statements and Syntax, the code you type to create and process objects in Python, along with Python's general syntax model; Functions, Python's basic procedural tool for structuring and reusing code; Modules, packages of statements, functions, and other tools organized into larger components; Classes and OOP, Python's optional object-oriented programming tool for structuring code for customization and reuse; and, Exceptions and Tools, exception handling model and statements, plus a look at development tools for writing larger programs. "Learning Python" gives you a deep and complete understanding of the language that will help you comprehend any application-level examples of Python that you later encounter. If you're ready to discover what Google and YouTube see in Python, this book is the best way to get started.

《JavaScript权威指南》全面介绍了JavaScript语言的核心，以及Web浏览器中实现的遗留和标准的DOM。它运用了一些复杂的例子，说明如何处理验证表单数据、使用cookie、创建可移植的DHTML动画等常见任务。本书还包括详细的参考手册，涵盖了JavaScript的核心API、遗留的客户端API和W3C标准DOM API，记述了这些API中的每一个JavaScript对象、方法、性质、构造函数、常量和事件处理程序。