Saving money by buying this book? How can that be? The answer is very simple.
1) For instance, you want to buy a book about thought experiment involving Schrödinger cat, because you are interested how is it possible that cat can be simultaneously both, live and dead. Well, quantum mechanics doesn't imply that cat is live and dead at the same time, so there is no such a problem.
2) Say, you want to buy a book about parallel universes which suppose to emerge from strange quantum mechanical laws. Don't, because those parallel universes doesn't emerge from quantum mechanics (or from any other known physical law!)
3) Likewise, don't buy books which wants to 'explain' spooky affects of one photon on the other in the distance. That is not what happening after all.
4) Also, some books covers the subject about how biological evolution violate the second law of thermo-dynamics (because in biological evolution order tend to increase with the passage of time). Truth is that this is not truth.
All these, and many other questions Gell-Mann clearly explain in 'Quark and the Jaguar', so don't waste your time and money on those books.
You may ask your self: But, maybe Gell-Mann is wrong? Maybe he is, but it is extremely unlikely. He is the greatest living authority on quantum mechanics you can find around, so it is very wise to take seriously what he wants to tell us. Gell-Mann is, by all means, a far away from popular speculation and misunderstandings. His goal is not to take your money by writing what most people want to hear - a kind of misticism in science.
'Quark and the Jaguar' covers really wide range of subjects, which is not very surprising considering his brilliant mind. If you want to open up your mind this is the book for you. After reading it, you can start studying subjects you are especially interested for. 'Quark and the Jaguar' is must for any intelligent individual.