Cartography enthusiasts rejoice: the bestselling author of Just My Type reveals the fascinating relationship between man and map. Simon Garfields Just My Type illuminated the world of fonts and made everyone take a stand on Comic Sans and care about kerning. Now Garfield takes on a subject even dearer to our fanatical human hearts: maps. Imagine a world without maps. How would we travel? Could we own land? What would men and women argue about in cars?...

Joining an expedition to chart the southern seas, twelve-year-old mapmaker's assistant Sai, posing as a well-bred young lady with a glittering future, realizes she's not the only one on board harboring secrets when she discovers the ship's true destination.