In a Nutshell (O'Reilly)

This is a concise quick reference guide that distills a large amount of information on several languages and technologies into one compact book. It puts a fast-paced introduction, detailed reference section, and quick reference guide to each technology all within easy reach and contains useful information a Webmaster needs daily, whatever the technology. This one-stop resource for HTML, CSS, XML, CGI, JavaScript, HTTP, PHP, and Apache, is the book you'll turn to again and again. The book contains useful information that a Webmaster may need daily, whatever the technology, including: HTML; CSS; XML; CGI; JavaScript; HTTP; PHP; and Apache.