What makes a map “lost”? In this episode of Geographical Thinking, Michelle Brake welcomes Professor James Cheshire to explore The Library of Lost Maps, a collection of once-famous cartographic gems that have faded from public memory. From beautifully crafted atlases to practical wartime schematics, these maps reveal the values, fears, and dreams of the societies that made them. Plus, hear how modern tools like GIS are reshaping our understanding of space and place.