"Principles of Quantum Mechanics" by R. Shankar is a comprehensive textbook on quantum mechanics that provides a clear and concise introduction to the subject. The book covers the fundamental principles of quantum mechanics, including wave-particle duality, uncertainty principle, Schrödinger equation, and quantum statistics. The book is written in a clear and concise manner, making it easy for students to understand the complex concepts of quantum mechanics.
Applying the fundamental axioms of quantum theory to physical systems.
Before touching Chapter 2, you must solve every problem in Chapter 1 (Linear Algebra) without help. The moment you need a solutions PDF for "Show that the trace is invariant under unitary transformation," you are in trouble. Go back to Axler or Strang.