LINGUA FRANCA - an e-book for conservators of photographic materials

LINGUA FRANCA - A Common Language for Conservators of Photographic Materials.
Very nice electronic book about photographic processes, condition issues, Treatment Options, preventive care, technicla studies, provenance. Published by the Library and Archives Canada (http://www.bac-lac.gc.ca/eng/about-us/publications/electronic-books/Page...)