Amazon.com: Books: On Becoming Baby Wise: The Classic Reference Guide Used by Over 1,000,000 Parents Worldwide
We have so many friends having babies. I regularly point them to this book - the book that made our two daughters manageable. We swear by it and (like magic) have watched it teach our Anna Laura and Alexandria to sleep, eat and behave.
Highly recommended, but it's hard to do. Don't give up.
As an aside: there are people who passionately don't like it - the whole idea of putting a child on a schedule offends them. To those like that: sleep well.