Dover Little Activity Books are a line of children's activity books released by Dover Publications. Dover introduced a set of Sesame Street sticker books in the Little Activity line in 2009, and continued into 2011. The illustrations on most of the stickers are by Bob Berry, reusing art that has also been used in storybooks and crafts books. Some of the sticker books are marked as "Classic"; the Classic sticker books use art from older storybooks and crafts kits.