In his book Alex's Adventures in Numberland, Alex Bellos quotes Colin Wright.
"Once you have a language to talk about a problem, it aids your thought process. Maths is not sums, calculations and formulae. It is pulling things apart to understand how things work."
- Peter J. Beek and Arthur Lewbel, The Mathematics of Juggling. Scientific American 1995.
- Alex Bellos, The Science of Fun. Guardian May 2008. Revised version is included in Alex's Adventures in Numberland, Bloomsbury 2010. The quote from Colin Wright is on page 251.
- Bill Donahue, The Mathematics of . . . Juggling, Discover December 2004
- B. John Sommers, Juggling as Performing Mathematics. 2000.
Casual readers of Alex's piece might get the impression that Colin Wright was the chief creator of sideswap theory, but Colin himself disavowed this on a juggling newsgroup in December 2008, and provided a brief sketch of sideswap history.