Anyone know of a good textbook that i can get off of amazon. I just want a good book to steer me in a good direction. Because i just study this a lot in my spare time and i don't have a decent source of information. Any textbook will do but i need something. The difficulty of the book does not matter to me for even if i don't know or don't understand something i can look it up. Thank you for any help you can give me.