For common lisp and (arguably more popular) older ( thansk hding) dialect scheme, a great book to check out is Structure and Interpretation of Computer Programs, availible here. Since MIT uses it to teach CS majors, it seems to be a good choice.
Update: My bad - my naming is all screwey. Shows what happens when I try to be clever. Fixed now. Thanks, etcshadow!
Update: Numerous fixes suggested by replies. Thanks!