As printing became available, it was promptly used to publish herbals, the first printed matter being known as incunabula. herbalist In Europe, the first printed herbal with woodcut illustrations, the Puch der Natur of Konrad of Megenberg, appeared in 1475. Metal-engraved plates were first used in about 1580. herbal colon cleanse As woodcuts and metal engravings could be reproduced indefinitely they were traded among printers: there was therefore a large increase in the number of illustrations together with an improvement in quality and detail but a tendency for repetition. As examples of some of the world's most important records and first printed matter, researchers will find herbals scattered through the world's most famous libraries including the Vatican Library in Rome, the Bodleian Library in Oxford, the Royal Library in Windsor, the British Library in London and the major continental libraries. herbal essences Further information: Chinese herbology and Chinese Herbal Medicine China is renowned for its traditional herbal medicine that date back thousands of years.