Extraterrestrial beings -- Comic books, strips, etc. Good and evil -- Comic books, strips, etc. Villains -- Comic books, strips, etc. Heroes -- Comic books, strips, etc. Superheroes -- Comic books, strips, etc.

Dogs -- Comic books, strips, etc. Dogs -- Juvenile fiction. Police -- Comic books, strips, etc. Police -- Juvenile fiction. Cats -- Comic books, strips, etc.

Books and reading -- Comic books, strips, etc. Books and reading -- Juvenile fiction. Bookstores -- Comic books, strips, etc. Bookstores -- Juvenile fiction. Humorous stories.

Dogs -- Juvenile fiction. Police -- Juvenile fiction. Cats -- Juvenile fiction. Humorous stories. Graphic novels.

Superheroes -- Juvenile fiction. Urine -- Juvenile fiction. School children -- Juvenile fiction. Graphic novels -- Authorship -- Juvenile fiction. Superheroes -- Comic books, strips, etc.

Heroes -- Comic books, strips, etc. -- Juvenile fiction. Infants -- Comic books, strips, etc. -- Juvenile fiction. Humorous stories.