In addition to How To Brew - which is considered somewhat of the homebrew bible (most brewers here have it, or you can access the first version online) another one i have which is excellent is "homebrewing for dummies" or something like that. You know those ......for dummies series. There's one about homebrewing. It's very good. Lighthearted but still technical enough to get a great understanding on the finer points.
How to brew is very good, but complete overkill for the new brewer a lot of the time (not implying this is you, it just gets recommended a lot, even in places where it's obviously overkill for the recommendation).