In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "You read the examination.txt file, and did some calculations to see how the students did."

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in our text like this: "Edit the Sort rows step by double-clicking it, click the Get Fields button, and adjust the grid."