
Gives a fascinating introduction to salt, the only mineral that can be eaten by humans and a mineral that people, animals, and even some plants need to survive, with topics covering the composition of salt, the role of salt in history, the location of salt deposits around the...

To most people, the primary purpose of salt appears simply to be to make food taste better. Yet salt is so important that it has been used as money and has supported the economy of many countries over the centuries. This new book gives a fascinating introduction to salt, the...