Preface. List of Participants. List of Lectures. 1. Radio astronomy: a short historical introduction; F. Mantovani. 2. Principles of synchrotron emission in an astrophysical context; T. Huege, H. Falcke. 3. Non-thermal emission from extragalactic radio sources: a high resolution broad band approach; G. Brunetti. 4. The observational properties of blazars: selection relationships and unification; I. Browne. 5. Observing blazars with VLBI; R. Porcas. 6. Theory of relativistic jets: basic concept; E. Koerding, H. Falcke. 7. Parsec-scale morphologies and properties of radio sources; T. Venturi. 8. Supermassive black holes in the Universe; A. Brunthaler, H. Falcke. 9. Young powerful radio sources and their evolution; R. Fanti. 10. AGN unification: past, present and future; I. Browne. 11. Radio polarimetry; B. Cotton. 12. Gravitational lensing with radio bias; I. Browne. 13. VLBI observations of gravitational lenses; R. Porcas. 14. Scintillation in extragalactic radio sources; M. Bondi. 15. Supernovae; J. Marcaide. 16. Astrophysical masers; R.S. Booth, P.J. Diamond. 17. Radio and optical interferometry; B. Cotton. 18. Optical interferometry: astronomical application; B. Cotton. 19. Data Analysis; B. Cotton. 20. Deep fields: the faint sub-mJy and microJy radio sky: a VLBI perspective; M. Garrett. 21. Space VLBI; S. Frey. 22. VLBI for geodesy abd geodynamics; J. Campbell. 23. Tropospheric and ionospheric phase calibration; J.-F. Lestrade. 24. Ground-based VLBI facilities: the European and global VLBI network; M. Garrett. Tutorials. Contributed Papers. Index.