App Development is both a rapid tutorial and a useful reference. You'll quickly get up to speed with Objective-C, Cocoa
Touch, and the iOS
7 SDK. It's an all-in-one getting started guide to building your first iPhone
or iPad app. You'll learn best practices that ensure your code will be efficient and perform well, earning positive reviews on the iTunes App Store, and driving better search results and more revenue.
7 SDK offers powerful new features, and this book is the fastest path to mastering them - and the rest of the iOS
SDK - for programmers with some experience who are new to iPhone
and iPad app development. Many books introduce the iOS
SDK, but few explain how to develop apps optimally and soundly.