There are many books that you can read even if you know just a few signs. One of the favorites at our house is Here We Go Round The Mulberry Bush from the Child's Play Classic Books with Holes series.
Here is a video clip of Mega reading the page with bath and brushing teeth. She is 21 months old in this video and uses ASL signs along with spoken words. Since she is still young her pronunciation is not great but thanks to the signs it is easy to know what she is saying!