Missing Manuals are witty, superbly written guides to computer products that don’t come with printed manuals (which is just about all of them). Each book features a handcrafted index, cross-references to specific page numbers (not just “see Chapter 14”), and an ironclad promise never
好资源，如果有最新版就更好了
可读行很强，比iphone handbook要实用易读，推荐