C.M.
Hi L.,
We are new to Arlington and have 4-yr-old triplets who have been signing since they were eight months. I started with a book I stumbled upon at Half-Price Books but would highly recommend the Singing Time video series. We have the first thirteen DVDs and absolutely love them. They now have a Baby Signing Time series and you can visit their web site at www.signingtime.com and click on the "shop" link. They have a lot of great products!
C.