 The 85 Ways to Tie a Tie

The 85 Ways to Tie a Tie is a book by Thomas Fink and Yong Mao about the history of the knotted neckcloth, the modern necktie, and how to tie both.It is based on two mathematics papers published by the authors in "Nature" and "Physica A" while they were research fellows at Cambridge University’s Cavendish Laboratory.