Nowadays, natural products and in particular medicinal plants, play an important role in human health and therapeutics. Across the world, several different cultures employ medicinal plants for the treatment of a wide range of pathological conditions. In this book, we address the antioxidant properties of several medicinal plants, as well as their traditional uses and conservation strategies. This is, without a doubt, a wonderful opportunity to have a closer insight into the chemistry, biological properties, conservation and traditional use of medicinal plants used around the world.