Learning Cocoa with Objective-C - covers Mac OS X 10.2 (2. Aufl.). - James Duncan Davidson (O'Reilly, 2002)

Cocoa in a nutshell - a desktop quick reference. - Michael Beam; James Duncan Davidson (O'Reilly, 2003)

Running Mac OS X Panther - inside Mac OS X's core. - James Duncan Davidson (O'Reilly, 2004)

Mac OS X panther hacks - 100 industrial-strength tips and tools. - Rael Dornfest; James Duncan Davidson (O'Reilly, 2004)

Running Mac OS X Tiger - a no-compromise power user's guide to the Mac. - James Duncan Davidson; Jason Deraleau (O'Reilly, 2005)