Don't know anything about programming? No problem! Acclaimed author Dave Mark starts out with the basics and takes you through a complete course in programming C using Apple's free Xcode tools for Mac and iPhone, using contemporary OS X and iOS, respectively.
Learn Cocoa for the Mac, Second Edition, completely revised for OS X Mountain Lion and XCode 4, guides you through the jungle of classes, tools, and new concepts so that you can get started on the next great OS X app today.
Learn cocos2d 2: Game Development with iOS provides a rock-solidand expandedintroduction to the new cocos2d 2.0 iOS game apps creation engine and related tools, including the new Kobold2D project and more.
Learn iOS App Development is both a rapid tutorial and a usefulreference. You'll quickly get up to speed with Objective-C, CocoaTouch, and the iOS 7 SDK. It's an all-in-one getting started guide tobuilding your first iPhone or iPad app.