Maps. World windows maps - Boston : Heinle, c2012. - 16 p. : ill. , 11 maps ; 25 cm. - World wondows readers ; level 2 . - World windows readers ; level 2. . When do you use a map and what does a map show? ISBN: 9781133492672 1133492673 Subjects--Topical Terms: Readers.Maps--Juvenile literature.Cartography--Juvenile literature.