Cocoa Programming for OS X: The Big Nerd Ranch Guide

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Once upon a time, there was a company called Taligent. Taligent was created by IBM and Apple to develop a set of tools and libraries like Cocoa. About the time Taligent reached the peak of its mindshare, Aaron met one of its engineers at a trade show and asked him to create a simple application: A window appears with a button. When the button is clicked, the words “Hello, World!” appear in a text field.

The engineer created a project and started subclassing madly, subclassing the window and the button and the event handler. Then he started generating code: dozens of lines to get the button and the text field onto the window. After 45 minutes, he was still trying get the app to work. A couple of years later, Taligent ...