I don't like Jech's textbook on set theory because he gives these definitions written in this bizarre language and he doesn't restate the definition in colloquial English. That mathematicians feel its unnecessary to give colloquial examples of their definition or examples, in my opinion, is a mistake. I get the feeling that Jech just assumes people already understand set theory. I'm reading Breuer's text on Set Theory now but it is short and I will soon be done with it. Does anyone else know of a good text on set theory.