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All but one chapter in this book (Chapter 3, "Index of Graphs") is laid out in a consistent manner to help you generate results quickly. The format of the book has been designed to be used alongside your computer. After an introduction to the concept, we have designed each page or two-page spread to be self-contained. That is, with few exceptions, the steps required to produce a result begin and end without having to flip through pages.
We provide numbered steps on the left side of the page that generate the result illustrated on the right side of the page (see Figure 1.1).