. . . . . . "Juvenile works" . "Juvenile works"@en . "Explains what maps are and how to use them, including discussing map symbols and their meanings, how the layers of a map are put together, and how maps help us investigate the world we live in." . "Provides information and activities for understanding all kinds of maps and learning how they are made." . . "Be your own map expert"@en . "Be your own map expert" . . . . "Cómo ser un experto en mapas" . .