One of my co-workers has on his desk "Teach yourself SQL in 10 minutes". Yes, it is a SAMS book.
According to Ben Forta, the author, it is one of the best selling SQL books of all time. Not surprisng: who could resist a title like that?
I like his emphasis on getting stuff done. Even so, I think ten minutes is just about long enough to decide whether to pronounce it "sequel" or "ess queue ell".