Erica Sadun
The Core iOS Developer's Cookbook (5th Edition) (Developer's Library)
Talking to Siri: Learning the Language of Apple's Intelligent Assistant
Talking to Siri: Mastering the Language of Apple's Intelligent Assistant
The Gourmet iOS Developer's Cookbook: Even More Recipes for Better iOS App Development
The iPhone Developer's Cookbook: Building Applications with the iPhone 3.0 SDK
Modding Mac OS X: Extreme Makeovers for Your Mac
Taking Your iPad to the Max (Technology in Action)
Learning iOS Development: A Hands-on Guide to the Fundamentals of iOS Programming