content: This is a good, concise exposition of general and special relativity from the man who wrote the book. However, it will be above the heads of some... If you're interested in reading this book, I'd suggest looking for it in the library to see if it's really the book for you. Or even browse the text in a bookstore before you buy. If you think you'll need a course in Calculus, find a review of the theories that you can follow.