Pearson has introduced four new instructional books titled Cocoa Design Patterns, iPhone for Programmers, Sams Teach Yourself Cocoa Touch Programming in 24 Hours and Sams Teach Yourself iPhone Application Development in 24 Hours. The first book explains the object-oriented design patterns used in Apple's Cocoa frameworks and other software libraries. The book aims to supply an understanding of the design and logic of Cocoa so to be used while programming original software.

iPhone for Programmers provides readers with an app-driven learning approach. The book discusses 14 iPhone apps consisting of approximately 7700 lines of code and teaches how to create apps using Xcode, Cocoa and Interface Builder. Sams Teach Yourself Cocoa Touch Programming in 24 Hours and Sams Teach Yourself iPhone Application Development in 24 Hours both teach readers iPhone app development using a step-by-step process consisting of 24 lessons in each book. The books feature information about developing effective app interfaces, ways to access the Internet, and how to play media.

Cocoa Design Patterns is currently available to order and priced at $50, while Sams Teach Yourself Cocoa Touch Programming in 24 Hours, Sams Teach Yourself iPhone Application Development in 24 Hours, and iPhone for Programmers can be pre-ordered online with prices ranging from $30 to $35 and release dates scheduled for the end of October.