Hi. I have posted a few questions in the Quantum section and been advised to get the Ballentine book. I know there is a new edition coming out soon so I was waiting to get that. I already have a few other Quantum books Recently I have seen a few posts talking about controversial issues in Ballentine. My question is ; is Ballentine a good book to learn from considering its controversial side ? Where it is considered controversial is it just controversial or do some people consider it incorrect ? And where would that leave me if I used that knowledge in an exam ?