This is the book that gave me the confidence and basic knowledge for me to take my first leap into homebrewing. I think it's excellent. checkout the authors website too.
This probably goes against the majority, but, I read another, older, well known/popular book about a year before I read the John Palmer book. That book scared me away from homebrewing. not relaxing at all for me. to be fair, I've never re-read it with the knowledge I've gained in the years since, but that was my just my own experience.