For those who could get their hands on it, the self-published edition of 'Blue Mountain Buckskin' inspired generations of home tanners. This underground classic

First edition published under title, Deerskins into buckskins: how to tan with natural materials; a field guide for hunters and gatherers, c1997.

In this stunningly original book, Richard Wrangham argues that it was cooking that caused the extraordinary transformation of our ancestors from apelike beings