Apple's Cocoa framework and tools are indispensable to every developer who wants to take full advantage of Mac OS X's features and performance, and get applications to market rapidly. However, Cocoa has a steep learning curve, and the official documentation leaves much to be desired. Now, Cocoa insider Aaron Hillegass presents the first start-to-finish guide for serious Cocoa development. In this book, Hillegass leverages his experience as the creator of the world's first independent Cocoa training course, anticipating the questions that real-world developers ask about Cocoa -- and offering deep insight into the design patterns that give Cocoa its extraordinary power and elegance. He begins with an overview of Cocoa's goals, capabilities, and toolset. Learn how to use Cocoa's Project Builder to track all of your application's diverse resources, edit code, and compile and run applications. Master the Cocoa Interface Builder: leverage the full capabilities of Mac OS X's breakthrough Aqua interface, then go beyond "windows and widgets" to create classes and edit their attributes.Hillegass gives experienced C and object-oriented developers all the skills they need to use Objective-C, the preferred language for Cocoa development. Coverage includes: custom views; responders and keyboard events; fonts and NSString; pasteboards; categories; compilation with the GNU C (gcc) compiler; debugging with the GNU debugger (gdb); and much more. The book includes extensive code examples; most in Objective-C, some in Java.