Hello! I have been told that Zettili's book is the best. How much is that true? And can I follow it and still be capable of solving problems posted in exams (knowing that my Prof is working in other books.. ) I want to be able to solve ANY exercise at the end of the semester. Your advice - your detailed advice please. (what about griffiths, J.J Sakurai, Ramarmuti?) I will count on you on this one, so please only who know best, answer.