Introduction to Symmetry and Group Theory for Chemists Book

I read it more than 15 years ago, by that time I had finished graduate studies and several years of postdoc work in physics, and I thought I knew quantum mechanics well. After reading this book I realized how much I had not learned in the grad school (and not mentioned in standard text books) This book enlightened me on the intricacies of the Copenhagen interpretation of Quantum mechanics. I believe Still it is the best introductory book on the Copenhagen picture of quantum mechanics (EPR, Bell inequalities, Aspect experiments and all that) , and highly recommended. its treatment is detailed and adequately rigorous. Unfortunately in the second edition of the book "Beyond Measure" author has watered down some of the aspects.