This book represents the Proceedings of the Fifth International Workshop on Food Mycology, which was held on the Danish island of Samso from 15-19 October, 2003. This series of Workshops c- menced in Boston, USA, in July 1984, from which the proceedings were published as Methods for Mycological Examination of Food (edited by A. D. King et al., published by Plenum Press, New York, 1986). The second Workshop was held in Baarn, the Netherlands, in August 1990, and the proceedings were published as Modern Methods in Food Mycology (edited by R. A. Samson et al., and published by Elsevier,...