You can achieve good layout by using a few layout tools in several different ways. This section describes each of them.
Usewhitespacetoenhancereadability. White space, including spaces, tabs, line breaks, and blank lines, is the main tool available to you for showing a program's structure.
You wouldn't think of writing a book with no spaces between words, no paragraph breaks, and no divisions into chapters. Such a book might be readable cover to cover, but it would be virtually impossible to skim it for a line of thought or to find an important passage. Perhaps more important, the book's layout wouldn't show the reader how the author intended to organize the information. The author's organization is an important clue ...