Alexander McCall Smith is the author of the award-winning series The No.1 Ladies' Detective Agency, and he now devotes his time to the writing of fiction, including the 44 Scotland Street and the Isabel Dalhousie series. He is the author of over eighty books on a wide array of subjects, and his work has been translated into forty-six languages. Before becoming a full-time writer he was for many years Professor of Medical Law at Edinburgh. Sam Usher has been shortlisted for the Waterstones Prize and the Red House Children's Book Award and longlisted for the Kate Greenaway medal. He is particularly admired for his technical drawing skill and prowess with watercolour.