 His primary interests have been in information theory, random fields, communication networks, video compression, signature verification, coherent signal processing, and quantum information theory.Berger is a member of the National Academy of Engineering an IEEE Fellow, a past president of the IEEE Information Theory Society, and a member of the American Association for the Advancement of Science, the American Society for Engineering Education, Sigma Xi, and Tau Beta Pi.He received the 2002 Claude E. Shannon Award for his contributions to information theory, and the 2011 IEEE Richard W. Hamming Medal.