- E-bookMaths on the Back of an EnvelopeRob Eastaway
- E-book100 Maddening Mindbending PuzzlesRob Eastaway
- E-bookWhy Do Buses Come in Threes?Rob Eastaway
- E-bookHow to Remember (Almost) Everything, Ever!Rob Eastaway
- E-bookHow Long Is a Piece of String?Rob Eastaway
- E-bookWhat is a Googly?Rob Eastaway
- E-bookThe Hidden Mathematics of SportRob Eastaway
- E-bookMindbenders and BrainteasersRob Eastaway
- E-bookHow to Take a PenaltyRob Eastaway
- E-bookHeadscratchersRob Eastaway