Objective-C Programming: The Big Nerd Ranch Guide (Big Nerd Ranch Guides) (9780321706287): Aaron Hillegass, Mark Fenoglio
Clean Code: A Handbook of Agile Software Craftsmanship (9780132350884): Robert C. Martin Which door represents your code? Which door represents your team or your company? Why are we in that room? Is this just a normal code review or have we found a stream of horrible problems shortly after going live? Are we debugging in a panic, poring over code that we thought worked? Are customers leaving in droves and managers breathing down our necks?
Cocoa Programming for Mac OS X (4th Edition) (9780321774088): Aaron Hillegass, Adam Preble
Programming in Objective-C (4th Edition) (Developer's Library) (9780321811905): Stephen G. Kochan