All too often, developers grind through building good apps on willpower and a vigorous focus on code development, leaving them unaware of and unable to benefit from the underlying structural and functional design patterns. 

Pro Objective-C Design Patterns for iOS will teach you those design patterns that have always been present at some level in your code, but were never recognized, acknowledged, or fully utilized. Implementation of specific pattern approaches will prove their value to any developer working in the iOS application arena. You’ll learn to master classic patterns like singleton, abstract factory, chain of responsibility, and observer. You’ll also discover less well-known but useful patterns like memento, composite, command, and mediator.

Carlo Chung is a computer scientist, tinkerer, and amateur photographer. He earned a master s degree in computer science, specializing in computer vision (a branch of artificial intelligence). Any idea about putting artificial intelligence and any small gadgets together can get him excited. He likes daydreaming about making the iPhone more intelligent and humanoid. He applied his knowledge of computer vision to the iPhone platform and created several apps, two of which have been featured on the front page of the App Store, with one on the top-paid list in the photography category. When he is away from his keyboard, you may see him playing a part in a drum circle or out in the field prospecting for gold.