Take a photo of a barcode or cover
The book is fairly short -- 9 chapters, around 300 pages. The first three chapters are pretty good for a beginner / intermediate user of git. The fourth chapter talks about server-side usage of git (including gitweb, github.com, etc.) and is pretty information sparse. The fifth chapter gives vague suggestions of git workflows in a team. The sixth and seventh chapters go into a little more detail about intermediate git usage and customization. The eighth chapter is entirely devoted to git interacting with svn and perforce. And the 9th chapter goes into incredible detail of git as a "content-addressable filesystem" with some decent examples and explanations of git internals and the .git directory. Overall this book is so unfocused as to not be worth buying for your shelf.