Having to choose a book to teach myself Quantum Mechanics (I am enrolled at university but in fact I am a self learner being of mature age), I evaluated many textbooks on the subject, included the most respectable ones that could be found around. It's clearly an important decision, having in consideration the vastity and complexity of the subject. At last, I picked Prof.Zettili's book. In fact, I found that this textbook offered such an unparalleled level of theoretical clarity and such a great wealth of solved problems to make it without any doubt extremely useful to a student in my position and I also strongly believe to ordinary students.