1. Introduction, 2. Gauge Theories, 3. The Standard Model of Electroweak
Interactions, 4. The Higgs Mechanism, 5. The CKM Matrix, 6. Renormalisation and
Higher Order Corrections, 7. Why we do Believe in the Standard Model: Precision
Tests, 7.1.Precision Electroweak Data and the Standard Model, 7.2.A More
General Analysis of Electroweak Data, 8. Why we do not Believe in the Standard
Model, 8.1.Conceptual Problems, 8.2.Hints from Experiment, -8.2.1 Unification
of Couplings, -8.2.2 Dark Matter, -8.2.3 Neutrino Masses, -8.2.4 Baryogenesis,
9. Status of the Search for the Higgs and for New Physics, 10.ConclusionComment: 59 pages, 9 figures, Lectures given at the Nathiagali Summer School,
Pakistan and the PSI Zuoz Summer School, July - August 200
