I second both recommendations! Since you're new to databases in general, the "MySQL" book is probably the one you should start with. MySQL has some setup and security issues to get by first, and the "MySQL" book does a good job of explaining what needs to be done. That's a very good reference book too. I bought the "MySQL and Perl for the Web" by Paul Dubois, but I haven't read much of it yet. What I have read of it I liked very much. I like Paul's writing style - I find it very easy to follow and not a lot of fluff - just the stuff you need to know.
HTH.