Mauro Barni has carried out his research activities for over 14 years, first at the Department of Electronics and Telecommunication of the University of Florence, then at the Department of Information Engineering of the University of Siena, where he presently works as Associate Professor. During the last decade, his research activity has focused on digital image processing. More recently, he has been studying the application of image processing techniques to copyright protection and authentication of multimedia (digital watermarking), and to the transmission of images and video signals in error-prone, wireless environments. He is the author/co-author of more than 160 papers published in international journals and conference proceedings. He is the co-author of the book Watermarking Systems Engineering: Enabling Digital Assets Security and Other Applications, published by Dekker Inc. in February 2004.