Maps are much more than geographical representations of places. In addition to teaching geographic understanding, maps illustrate change over time. They can tell us about the people who made them, the times in which they lived, and what they knew and didn’t know. Maps can also make an argument. Maps have been used to claim new territory, to insult rivals and to attack competitors. The Library of Congress has gathered this group of maps together for teachers and students. Analyzing maps helps students discover new topics to explore further and can support the development of critical thinking skills that they can apply to other representations of the world. With the supporting Teacher's Guide, explore the historical background of a variety of maps, examine different types of maps, and recognize the value of analyzing maps as primary sources.