This book summarizes the results of two symposia held on hydroxy-pyridones as antifungal agents organized on the occasion of the International Summit on Cutaneous Antifungal Therapy 1996 in Vancouver and the 19th World Congress of Dermatology 1997 in Sydney. Some of the papers deal with the basic mechanisms of action and how these translate into product features, e.g. activity spectrum. Other papers describe the unique properties of hydroxy-pyridones, such as high penetration into and through keratinic tissues or their activity as dual inhibitor on 5-lipoxygenase and cyclooxygenase which leads to a remarkable antiinflammatory effect. Last but not least various accounts are given which show how this unique product profile aids the treatment of various fungal diseases, especially onychomycosis.