An atlas is a collection of maps, typically bound together in book form. It provides detailed geographical information about various regions, including countries, cities, and physical features like mountains and rivers. Atlases can also include thematic maps that focus on specific topics, such as climate, population, or transportation. In addition to traditional paper atlases, digital atlases are available online, offering interactive features and up-to-date information. They are useful for education, travel planning, and research. Atlases are often used in conjunction with tools like GPS and globes to enhance understanding of the world.