Suggestion for next edition


In the last chapters, I missed the practical application of the code. I believe blindly that the items in this chapters will be very handy for my programming future, but in most cases I miss some steps. Is it an idea for next editions to give examples of the bigger picture in which we are going to use these Very Important Items? Like: Is NSData what you are going to need if you have files with 100 .png’s? Or for working with Core Data/external databases? Or the opposite: for anything BUT working with databases.
In what kind of (for example existing) apps/programs do we recognize arrays and sets and dictionaries.
That kind of IRL examples would have helped me to get the picture.