The quality of the content is amazing. It's clear and straightforward, it doesn't leave the reader pondering what's going on. This is pretty constant without.<br><br>My main gripe with this book is that the best way to learn physics is to do problems. Which this book has none of. Instead on the first chapter he refers you to the Yale website where he has practice problems with worked solutions. Which is nice, but you're making the reader do more than should be necessary.<br><br>I think this book would be amazing if it had at least the questions, and then the solutions on the website. Honestly, I would prefer both the solutions and questions to be in the book itself, but I'm assuming the publisher/author wanted to save money on paper, and solutions to take up quite a lot of space.<br><br>Overall I recommend this book. I don't regret buying it. I used it a long side an actual textbook so I could understand the theory a bit more. I honestly wouldn't mind paying a few bucks more for problems in book.