Buster Bayliss is a series of books written by British author Philip Reeve, intended for younger readers. The main character of the series is Buster Bayliss. In the stories, Buster must stop someone or something taking over the world. The catchphrase which often appears on the cover of the books is where's there's trouble, there's Buster Bayliss. So far there are four books. Source: Wikipedia (en)