what is a good psychology textbook i can buy?

Into Psychology, after this abnormal psychology, then psychology 223, these will give you a good start on the science. Psychology 223 is a subject about how personalities are developed and the maturing stages of people. Abnormal Psychology gives a screening on the mental conditions common in all societies and their sometimes historical reviews. Of course intro psychology separates the curious form the serious minded. There are other subjects but these will give you a head start, while you venture in the world of psychic drama don't forget to include a good study of Mr. Sigmund Freud!