The Toybag Guide to Hot Wax and Temperature Play by Spectrum

A secondhand book in very good condition. From the back cover: "A 'workshop in a book' on hot wax and temperature play-- including:
types of wax and candles
fact and fiction about hot wax
dealing with body hair
the 'Vat Out of Hell' and other special wax techniques
Playing with ice and other temperature tricks
First aid and safety issues
 
A working scientist, technogeek, and lifelong student of the human and inhuman condition, Spectrum has spent more than a decade exploring hot wax and other forms of. temperature play in both laboratory and field settings. He is a learder in his local BDSM community and a well-known Internet personality."