Tim Isted has been writing software for Macintosh computers since 1995. He also builds web applications using Ruby on Rails, PHP, and .NET, and has been known to develop for Windows machines, too. He blogs on Core Data at www.timisted.net, and is currently co-organizing NSConference, a conference for Mac developers.
"This is a book for the absolute beginner, not the programming student looking for a little extra help. That said, if you fit the bill then you really won't regret your investment in this superb coding tutorial."
--Davey Winder, DaniWeb