Ha colaborado con
- Richard Osman — en Richard Osman's House of Games, Bletchley Park Brainteasers, The Scotland Yard Puzzle Book, The Bumper Book of Would You Rather 4 Books Collection Set
- Sinclair McKay — en Richard Osman's House of Games, Bletchley Park Brainteasers, The Scotland Yard Puzzle Book, The Bumper Book of Would You Rather 4 Books Collection Set