Quantum Mechanics textbook by David J. Griffiths

David J. Griffiths' "Introduction to Quantum Mechanics" is a foundational textbook that explains how particles behave at very tiny scales, where classical physics no longer applies. It covers principles like wave-particle duality, uncertainty, and quantum states, using mathematical tools and examples. The book aims to make these complex ideas accessible to students, blending theory with practical problem-solving, and emphasizing conceptual understanding. It’s a key resource for learning how the bizarre rules of quantum mechanics govern atoms, molecules, and subatomic particles, fundamentally shaping our understanding of the universe at the smallest scales.