- E-bookThink Outside the BoxDr. Gareth Moore
- E-bookIt's Only LogicalDr. Gareth Moore
- E-bookPyramid PuzzlesDr. Gareth Moore
- E-bookSpace PuzzlesDr. Gareth Moore
- E-bookSeeing Is BelievingDr. Gareth Moore
- E-bookJungle PuzzlesDr. Gareth Moore
- E-bookNot So OrdinaryDr. Gareth Moore
- E-bookOcean PuzzlesDr. Gareth Moore