Paul Castle and his book, "The Secret Ingredient" Paul Castle is a blind author and illustrator who wrote The Secret Ingredient, an inclusive children's book about penguins who learn the "secret ...

Paul Castle and Jaimee Kadish share a number of things in common, including a sharp sense of humor and a resiliency that inspires. Both are legally blind due to a rare disease called retinitis ...

Paul Castle is a blind author and illustrator who wrote The Secret Ingredient, an inclusive children's book about penguins who learn the "secret ingredient" to a happy family. Castle, who triples as a ...