An introductory book on Quantum Mechanics that is at a much higher level than other introductory books. Provides proofs whenever possible and gives precise and thorough explanations. Although there are more pedagogical books (like Shankar's or Griffith's textbooks), you will learn Quantum Mechanics and be at a very good level if you go through this book. Greiner is popular for giving many examples that are fully worked out and this book does not disappoint in this aspect. A really good treatment of Quantum Mechanics!