I also like your book collection, from which publisher are the Core ones ?
Thanks. The Pragmatic Programmers / Pragmatic Bookshelf. They have a great selection and from their books I have purchased and read so far, I have found them all well written and fairly approachable. For anyone with some C and OOP skills just starting with Mac/iOS development, I'd also recommend Cocoa Programming (Steinberg). Now out of print, but easy to find second hand.
I have a few other PragProg publications on Kindle I'd recommend: Good Math, The Passionate Programmer and The Pragmatic Programmer. Less platform-specific, but good reads if you're into this sort of thing


