It's a book about a little "one-liner" Commodore 64 BASIC program. What happens when a bunch of academics want to talk about the good ol' days of 1980s home computer programming? A book like this, that's what. This book's title is a little program that draws a maze-like pattern on screen. Plenty of newbie programmers, me included, learned tricks of the trade by contemplating such snippets. This book takes this little program as a leaping-off point and has fun with some topics. There's a chapter about mazes, a chapter about randomness (especially computer pseudo-randomness), about "regularity" (mostly grids in art), about BASIC, about the C64… asides about other programming languages, demoscene… You can find works out there that will tell you more about these topics, but this here book is a pretty interesting read.