Includes bibliographical references and index.

Part 1: The Physics. Setting the Scene / Ian C Brock, Thomas Schorner-Sadenius -- The Standard Model: Our Picture of the Microcosm / Markus Diehl, Wolfgang Hollik -- Electroweak and Standard Model Tests: the Quest for Precision / Klaus Monig, Georg Steinbruck -- Hard QCD: Still Going Strong / Sven-Olaf Moch, Klaus Rabbertz -- Monte Carlo Generators and Fixed-order Calculations: Predicting the (Un)Expected / Stefan Gieseke, Zoltan Nagy -- The Higgs Boson: Still Elusive After 40 Years / Markus Schumacher, Michael Spira -- Supersymmetry / Herbert Dreiner, Peter Wienemann -- Quark Flavour Physics / Gudrun Hiller, Ulrich Uwer -- Top Quarks: the Peak of the Mass Hierarchy? / Peter Uwer, Wolfgang Wagner -- Beyond SUSY and the Standard Model: Exotica / Christophe Grojean, Thomas Hebbeker, Arnd Meyer -- Forward and Diffractive Physics: Bridging the Soft and the Hard / Jochen Bartels, Kerstin Borras.

Part 2: The Technology. Accelerators: the Particle Smashers / Helmut Burkhardt, Jean-Pierre Delahaye, Gunther Geschonke -- Detector Concepts: from Technologies to Physics Results / Ian C Brock, Karsten Busser, Thomas Schorner-Sadenius -- Tracking Detectors: Following the Charges / Jorn Grosse -Knetter, Rainer Mankel, Christoph Rembser -- Calorimetry: Precise Energy Measurements / Felix Sefkow, Christian Zeitnitz -- Muon Detectors: Catching Penetrating Particles / Kerstin Hoepfner, Oliver Kortner -- Luminosity Determination: Normalising the Rates / Ian C Brock, Hasko Stenzel -- Trigger Systems in High Energy Physics Experiments / Eckhard Elsen, Johannes Haller -- Grid Computing in High Energy Physics / Wolfgang Ehrenfeld, Thomas Kre.

Part 3: The Organisation. The Sociology and Management of Terascale Experiments: Organisation and Community / R Michael Barnett, Markus Nordberg -- Funding of High Energy Physics / Klaus Ehret -- The Role of the Big Labs / Albrecht Wagner -- Communication, Outreach and the Terascale / James Gillies, Barbara Warmbein.