High Energy Physics And Cosmology 1997 - Proceedings Of The Summer School

In this volume recent developments in the nonperturbative aspects of string theory, duality in N = 1 string compactifications, orientifolds and F-theory as well as the matrix model description of M-theory are reported. The D-brane approach to black holes and their entropy is also discussed.The phenomenological part is devoted to the main fields of present-day astroparticle physics: supersymmetry, ...