These books are written by Phillip L. Krumholz and out of print, but now we can luckily read them as e-books. "A History of Shaving and Razors" (Ad Libs Publishing, 1987) has 313 pages, and it has a detailed history of shaving in the initial part of this book. The rest of this book is just an extremely exhaustive list of manufacturers and brands of shaving items. "Value Guide for Barberiana and Shaving Collectibles" (AdLibs Publishing, 1988) shows lists of many kinds of items from straight razors to Kochen chair with price rates, and shopping guides by authors policy and criterion. As a newcomer to traditional wet shaving, I would like to recommend learning about the history and people from books like these.

A must fore every collector