This line of DVDs is designed to teach early sign language skills to preschool-age children. Featuring beautiful video productions of some of the most recognizable children’s books of all time, this series offers a unique approach to learning sign language and helping kids of all hearing abilities to gain literacy and pre-reading skills. "Goodnight Moon…and More Great Bedtime Stories" is adapted from the 1947 storybook by Margaret Wise Brown that has sold tens of millions of units worldwide.