Thanks DrNuke! And Thanks for the great advice. FYI I am not new to iOS development and I am an iOS developer with a decent experience. I am googling for many y

Thanks DrNuke! And Thanks for the great advice. FYI I am not new to iOS development and I am an iOS developer with a decent experience. I am googling for many years sir! But I still need good materials that people went through already and I need their word for it, for E.g. the books offered by raywenderlich.com looks pretty promising but I’m not sure how informative or helpful it will be. So I hope the experts at HN can provide me and other iOS developers a direction to become an expert, the parts of iOS sdk we should master and the skills we should acquire to become the best.