This high-interest, educationally vetted series of beginning readers features the magnificent images of National Geographic, accompanied by texts written by experienced and skilled children's book authors. Each topic has an interactive game for a fun finish to kids' reading experiences. The Creepy Crawly Collection has two Level 1 books (Ants and Frogs), which reinforce the content of the book with a kinesthetic learning activity. It also has two Level 2 books (Bats and Snakes) in which readers complete a Cloze letter with vocabulary words.