New terms appear in bold italics the first time they are defined or described. Buzzwords, or keywords that have already been defined but that are important to a concept being explained may then appear in italics. Direct references to coding examples in the text of the book (methods, classnames, etc), and the coding examples themselves, are displayed in courier font, otherwise known as That Typewriter Typeface (TTT). Incidentally, there are a lot of acronyms in this book and some of them may be new to you. Generally if the acronym is the most common way to refer to a particular term, we will use the term, followed by the acronym, the first time it is mentioned in a section. The acronym will be used for the remainder of the section.