based on the bestselling books by Rob Scotton based on the bestselling books by John Grogan based on the best selling books by Jackie Urba based on the best selling books by Jackie Urbanovic based on the bestselling books of Rob Scotton ; text by Amy Hsu Lin Based on the bestselling books by Rob Scotton, text by Laura Driscoll based on the creation of Rob Scotton based on the creation of Rob Scotton. based on the bestselling children's book series by Anna Dewdney based on the bestselling childrens book series by Anna Dewdney.