Start here to read Sarah Van Keuren’s book “A Non-Silver Manual: Cyanotype, Vandyke Brown, Palladium & Gum Bichromate with instructions for making light-resists including pinhole photography” which she most generously gives away for free upon stopping publication.
A NON-SILVER MANUAL by Sarah Van Keuren
Cyanotype, Vandyke Brown, Palladium & Gum Bichromate
with instructions for making light-resists including pinhole photography with Gum Printing on Alternative Surfaces by Dana Leight
New in this edition:
Desktop Negatives by Sandra C. Davis
Instructions for Copy Cameras
by SVK, Sandra C. Davis, & Stuart Goldstein
One Interpretation of Gum Printing by Melissa Good
Casein Printing by Rosae Reeder
Third Edition 2004, 10th Revision 7/10.