Web Development Books
HTML, CSS, and JavaScript Essentials
HTML5 Up and Running
An overview of the new HTML5 features which include new JavaScript APIs and CSS techniques.
JavaScript: The Definitive Guide
Considered the bible for JavaScript. It's split into three parts: core language, client-side for browsers, and a reference.
jQuery Novice to Ninja
jQuery is the most popular client side framework for JavaScript. This book is for beginner to intermediate jQuery users.
HTTP: The Definitive Guide
Learn about the platform you're developing for and how delivering web pages work.
Agile Web Development with Rails
This book is the de-facto guide on learning the web framework Rails. It's co-authored by the creator of the Rails framework.
Beginning PHP and MySQL
PHP was designed for building websites, this is a great introduction to web development using PHP and MySQL.