This book, 'Salt: A World History' by Mark Kurlansky, captures the fascinating and exciting history of the discovery of salt, and how it became an essential component of our diet. It offers a historical exploration filled with amazing facts about this substance, and how it became a shared ingredient uniting various cuisines across the globe.

Kurlansky narrates the history of this substance from the time of Homer and Plato and even earlier, revealing how salt shaped civilization since the dawn of creation and became a cause for conflicts and wars. The book also discusses how taxes on salt became an economic guarantee for the survival of many empires across Europe and Asia, and how Mahatma Gandhi's 'Salt March' in 1930 was a catalyst for the Indian revolution, marking the beginning of the end of British rule in India.