Databases Demystified (Demystified)

Very, very good introduction to databases. I'm mostly self-taught in the DB field, and felt that although I knew and understood most concepts at a reasonable level, there were a few bits and pieces missing. I bought this book in the hope that it would help me find those bits and pieces, and wasn't disappointed. This book would be excellent value if it cost more; at it's current price it's mindbogglingly good value. 

Databases Demystified (Demystified)