David J Robertson is a former engineer. His first children’s book, Dognapped! (Matador, 2016) was a finalist in the 2017 People’s Book Prize, nominated for not only the Best Children's Book Award but also the Beryl Bainbridge Award for First Time Author. He has also published In the Doghouse! (Matador, 2016). On the Dog Walk! is the third in the ‘Misty’ series telling the adventures of the Border Collie and her canine friends.