Go Deeper

• Soundings: The Story of the Remarkable Woman Who Mapped the Ocean Floor by Hali Felt - The definitive biography of Marie Tharp - her decades at the drafting table, her volcanic partnership with Heezen, and the slow recognition of a discovery that changed how we understand the planet.
• The Map That Changed the World: William Smith and the Birth of Modern Geology by Simon Winchester - The story of another lone figure whose geological maps were stolen and dismissed before the world caught up. Different century, same pattern.