Don McNamara, known as "Grandpa Don," will be signing copies of his books at the Tucson Festival of Books March 9th and 10th, 2013.
Read this excellent review from the Arizona Daily Star on Fun with Abby & Alyssa, to learn more about Don McNamara's journey creating these books and how you can buy them.
"I am thrilled to welcome the Abby and Alyssa book series to the PlayAbility Toys family. Grandpa Don's heart-felt stories that teach sign language are a perfect addition to the products we create to help children with special needs".