Nope. I just use the on-line reference manual, and when I can't understand it or find what I need, I start Googling.
I'm sure www.oreilly.com has a number of MySQL-related books, at least one of which should be at the level you're looking for, but I don't have any specific recommendations. (I learned most of the introductory DB stuff while working with Oracle and Informix, and so never really had a reason to look for any introductory MySQL books.)
I might recommend the two general database tutorials at http://www.geekgirls.com/menu_databases.htm to get a good grounding in basic and intermediate concepts, at which point the on-line manual should be less daunting.