Bookworm looks like a regular green worm. He is 6 ft tall with green eyes and a triz symbol on his chest and a large book of Earth literature on it's head.
Bookworm can slither very fast. He is very intelligent and can create books to telepathically throw. He can change the book that he holds on his head to any book in the known galaxies. He can also learn to use the abilities that are in the books he reads.