I just wanted to let you know that after reading the book, there are two topics that I am desperately missing: 1. NSIncrementalStore, how to implement one and use it for a web service. 2. NSNormalizedPredicateOption, there is a lack of information on what has to be done to the string so it gets saved normalized as one of the attributes so it can later be used with BEGINSWITH[n], for example. An example on how to create the canonical version of a non-english word, would be required here.