Reading to your child at an early age is a great way to promote literacy and a love for learning. Even if your baby is only a few weeks old, listening to your voice and looking at the pictures is a great way for a baby to learn. Babies begin to understand that words have meaning and they tell stories. If you read the same books again and again, they'll know what comes next and be really proud of themselves when they can tell you. They'll point to the pictures, giggle at the funny parts, and even turn the pages themselves. Most importantly, you're helping to build memory while giving them information about the world around them.
Check out these sites about babies and reading:
Top 5 Baby Books
Sharing Books with Babies
Baby Center: Reading to Your Baby