Free Apple Development e-books

Apple is offering up the following free e-books in their iOS device book store.

• iOS Human Interface Guidelines
• Object Oriented Programming With Objective-C
• Cocoa Fundamentals Guide
• The Objective-C Programming Language
• iOS Technology Overview
• iOS Application Programming Guide

Source: http://www.macworld.com/article/156499/2010/12/apple_developer_ebooks.html?lsrc=nl_mwweek_h_cbstories