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This book deals with the most recent achievements in the following areas of high energy physics: physics of e+e- collisions, lepton-nucleon scattering, relativistic heavy ion collisions (the quest for quark-gluon plasma), and multiparticle production. New experimental results from Tevatron, LEP, SPS and HERA and the theoretical progress in the aforementioned fields are presented.

The ISMD 2005 conference reviewed and updated the theoretical and experimental understanding of multiparticle production in high energy collisions. About half of the papers discussed collisions of ultra-relativistic nuclei with recent results from RHIC. In addition, some intriguing results from HERA and Tevatron colliders were presented and future experiments were discussed as well. Following the ISMD conference, the Workshop on Particle Correlations and Femtoscopy was held for the first time. This new series of regular workshops presents a critical and thorough analysis of the latest results on particle interferometry in high energy heavy ion collisions. Thefocus on this rather narrow subject was stimulated by a wealth of new data arriving steadily from the RHIC and SPS experiments.

This volume discusses the most recent results on multiparticle production. These include the differences between quark and gluon jets from LEP at CERN, the search for the disoriented chiral condensate at Fermilab, the existence (or not) of the quark-gluon plasma and the large rapidity gaps in Hera physics. In many different experimental situations, the subject of multiparticle dynamics remains alive.Main speakers: J Antos, B J May, J D Bjorken, P Sondereger, I Tserruya, R C Hwa, R Ugoccioni, A Giovannini, C Grupen, A de Angelis, G Thompson, J Kwiecinski, B Andersson.