Maths on the Back of an Envelope Maths on the Back of an Envelope
2019
Maths on the Go Maths on the Go
2016
How Long Is a Piece of String? How Long Is a Piece of String?
2014
Why Do Buses Come in Threes? Why Do Buses Come in Threes?
2014
The Hidden Mathematics of Sport The Hidden Mathematics of Sport
2021
100 Maddening Mindbending Puzzles 100 Maddening Mindbending Puzzles
2020