First of all, you should definitely read the two books that almost every homebrewer has read: "How to Brew" by John Palmer
(click for link to free book online) and "The Complete Joy of Homebrewing" by Charlie Papazian.
These books are a bit dated on information but they have soooo much info and know-how it's ridiculous. After reading those two just be sure to read anything you can find from books, brewing journal articles online, magazines like BYO, and homebrewtalk and other forums. And users on here are happy to answer any questions you have. A lot of times it ends up being that somebody is unsure because they received older info or an old-timer scared him with the old brewing myths (i.e. dry yeast = bad... which is very much not true.)