Valdir S > Recent Status Updates

I scanned throw the pages until the end of the "Closures" chapter and beginning of Enumerations (23.1% of the ePub).
What I can say is that the reading is straight forward but I liked most the Matt Neuburg's iOS Programming Fundamentals book. That one is well explained in a slow pace to new comers like me. So you won't have to stop your reading in order to do external research at topics that aren't clear yet.