Salt is life! For millennia, people have understood its necessity. This book describes the origin of salt and the various methods of salt extraction. It takes the reader on a journey through world history, illustrating where and how salt has revitalized entire regions. The use of salt in medicine—from antiquity to modern times—is also explored. In recent years, therapeutic applications of salt have seen a resurgence. The author lists both common and rare types of salt, including rock salt, sea salt, natural salt, Himalayan salt, blue or Persian salt, Glauber's salt, and desert salt, and provides detailed descriptions of their ingredients and uses, including our table salt, while critically examining the altered mineral. A significant focus of the book is the history of salt in Austria and around the world. In Hallstatt (Salzkammergut), one can find the oldest salt mine.