I've spent the past year looking for children's books about PD for Hailey and Rielly -Anne. I came across a great one - I'll Hold Your Hand So You Won't Fall, by Rasheda Ali. From what I can tell it's basically a simple Q&A book for little one's to help them understand the disease better. I think right now it's a bit too old for Rielly -Anne, but also too young for Hailey. Maybe next year when Rielly -Anne is a little older.