Conventions used

There are a number of text conventions used throughout this book.

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "We will discuss a wide set of Human-Computer Interaction (HCI) topics that address how to design, build (code), and test the vast amounts of software that ultimately run the world."