The iOS 5 Developer's Cookbook: Core Concepts and Essential Recipes for iOS Programmers (3rd Edition) (Developer's Library)
Erica Sadunis the bestselling author, coauthor, and contributor to several dozen books on programming, digital video and photography, and other technology topics. Sadun has authored dozens of iPhone-native applications, offers rapid-prototype consulting, and has blogged for many sites including Ars Technica, O’Reilly, and LifeHacker. She currently blogs regularly for TUAW. She holds a Ph.D. in Computer Science from Georgia Tech.