An Atlas is usually a book that contains a collection of various maps of the Earth, they can be specific of a certain region, like Europe or Asia, or include the whole planet. These maps show geographic features, the topography of an area's landscape and political boundaries. Statistics are also included, showing types of climate, aspects of societies, religion and economic characteristics. Although there are different types of atlases, two are the most popular: desk or reference ones, which usually are books, and travel atlases or roadmaps.