This book contains articles by experts on the plasma phase of quantum chromodynamics, and the plasma phase of electroweak interactions. The former plasma phase is being tested at RHIC (Brookhaven), and has been tested at CERN. Both plasmas have played roles in the development of the Universe since the Big Bang. A third topic is that of the high density colour superconductive state of matter, which may be present in the core of neutron stars. Contents: Color Superconductivity in Compact Stars (M Alford et al.); Aspects of Parity, CP and Time Reversal Violation in Hot QCD (D Kharzeev et al.); Electroweak Phase Transition Beyond the Standard Model (M Laine); Aspects of Semi-Classical Transport Theory for QCD (D Litim); Debye Screening in the QCD Plasma (O Philipsen); Isospin Matter (D Son & M Stephanov); The Electrical Conductivity in High Temperature QED (L Bettencourt & E Mottola); Phase Transition in QCD (H Satz); Time Dependent Effective Actions at Finite Temperature (T Evans); Nonequilibrium Dynamics in Gauge Theories (J Baacke & K Heitmann); Bubble Wall Velocity in the MSSM (P John & M Schmidt); Sphalerons with Two Higgs Doublets (M Hindmarsh & J Grant); and other papers. Readership: PhD students, researchers and academics in particle physics.