This book follows a few typographical conventions:
A new term is set in italic the first time it is introduced.
Program text, functions, variables , and other "computer language" are set in a fixed-width font ”for example, <?xml version="1.0" encoding="UTF-8"?> .
Some of the listing headings include a filename (for example, Listing 4.1 Simple XML Book List (list.xml) ”where (list.xml) is the filename). This filename is a reference to filenames used in subsequent code listings.
