This encyclopaedia is the culmination of more than 20 years of research into printing, photographic and photomechanical processes. It aims to clear up the confusion that has resulted from the invention of several hundred of these processes. Name any one of them and then ask the following questions: WHAT is it? WHO invented it? WHEN? WHERE can full technical information on the subject be found? This encyclopaedia, with more than 1,500 entries and 5,500 references in six languages, provides the answers.Here is a sample of the questions answered by this encyclopaedia: What is the difference between a calotype and a collotype, or between a serigraph and a silkscreen, what is X-ray lithography, what is the difference between woodcut and wood engraving, and what is the German translation of each term? When was Kodachrome film introduced and what other process was its name used for? Where are full technical details of the daguerreotype or woodburytype processes and who still uses them today? Which Canadian invented the legotype? When was it? What is it? When was nitrocellulose film last commercially available? What was the tea process of the 1870s and why was it so popular? Who will use this encyclopaedia? Print collectors, conservators, historians, teachers, students of the visual arts, archivists, dealers, auctioneers, writers, critics, cataloguers, curators, translators, document examiners and trademark specialists will find this work an invaluable reference tool.