The world of forensics is both fascinating and potentially confusing to non-scientists. Since Martin de Wiild first used forensic examination to authenticate van Gogh paintings in the first decades of the 20th century, science has been one of the key means of distinguishing fakes from originals in the art world. The complexity of the science employed by conservators and specialists means that non-scientists are confronted with processes and terms about which they know very little. While a true understanding of these techniques and terms requires intensive study, the following glossary offers a quick-reference for those who would like to know more about the forensic techniques used in the study of art.