Paul Shipton grew up in Manchester and went to university in Cambridge. He spent several years teaching English as a foreign language - living in Istanbul for a year. Paul then moved into publishing working on science activity books and primary school English materials.
By his own admission he wasn't sure that he wanted to be a writer: when he was growing up he read lots but wanted to be the characters in the books, not their creator.
Paul decided he wanted to write about animals that weren't cute and cuddly but were different from humans. The name Bug Muldoon just popped into his head. He had always liked the 'hard-boiled' style of writers like Raymond Chandler, and the name just struck him as being right for the character he had created.