I posted something like this in the Quantum Physics forums, i would also like a good book on relativity and such, but again if the math is past something like a high-school calculus course it may be a bit advanced. I would be interested in math books too, ones that helped teach some of the special math that these area of physics requires. Thanks so much, i'm looking for more introductory books, with math i can understand or little math involved at all. For more details about the books i already have see my post in the Quantum forum. Thanks again!