The term 'Atlas Illustration' refers to a type of MAP-making. It is a form of cartography, which is the science of making maps. Atlas Illustration involves creating detailed maps that accurately represent the physical features of an area. These maps are often used for navigation, exploration, and other purposes. The crossword solutions for this term are MAP, which is an acronym for 'Modified American Plan.' This type of MAP is used to show the location of roads, cities, and other features in a region.