The fourth book by Jayant has been printed around the 20th of May 2015.
The book is the Objective-C version in the More iPhone Development books by Apress. This book was originally authored by Dave Mark and Jeff LaMarche. Dave still features as the main author and Jayant is the Active Author who completely wrote this book.
Get this book if you want to work with Objective-C and Core Data and other advanced concepts.
This book can be purchased from Amazon and the details about this book can also be found on the Apress site at http://www.apress.com/9781430260370Social tagging: Amazon > Book > Development > iPhone > Xcode