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The existence of jets emanating from the central sources of
radio galaxies and quasars was perhaps the most important
discovery for our understanding of the nature of active
galactic nuclei. These proceedings present reviews and
research papers on extragalactic radio sources. The book
begins witha discussion of the phenomenology and models of
radio sources. The main partis devoted to detailed studiesof jets by VLBI, to the information obtained about the
structure of the central source as deduced from variability
studies, to production, confinement and velocity of jets as
well as to numerical simulations of the jet phenomenon.
Reviews of the two best studied jets - those in the radio
galaxy M87 and the quasar 3C273 - illustrate our current
observational picture of extragalactic radio jets in all
accessible wavelength ranges. A section on the influence of
the environment on radio galaxies concludes the book. This
topical volume addresses researchers and graduate students
in astrophysics.

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DRAGNs.- Jets and related issues: Observations of nearby FR II radio galaxies.- Properties of low luminosity radio galaxies: Polarization and jets.- Compact steep-spectrum radio sources: A progress report.- Modelling jets in class I and class II radio sources.- Supersonic extragalactic jets with turbulent boundary layers: Preliminary consideration.- VLBI observations of jets.- Parsec scale jets in FRI radio galaxies.- Probing the sub-parsec scale structures in extragalactic radio jets: VLBI at 43 GHz.- Symmetric structure in active galactic nuclei.- What does variability of the central sources tell us about jets?.- Infrared to centimetre variability of the Quasar 3C 273.- Multifrequency observations of intraday variability: Implications for the emission processes.- Formation of jets in extragalactic radio sources.- MHD-Stability of jets.- Dynamo-supported magnetic fields in radio jets.- Theory and simulation of jet stability.- Velocity and confinement of large-scale jets.- The velocity of large scale jets in Quasars.- The jet of M 87.- Modelling the jet and cooling flow in M 87.- The jet of the quasar 3C 273.- Spectral ageing in cygnus A.- HST observations of jets and radio lobes.- 3-D hydrodynamical simulations of extragalactic jets.- Numerical simulation of a hypersonic jet.- 3-D MHD simulations of extragalactic jets.- Radio galaxies and their environment.- The emission line lobes of 3C 368 (23).- Jet disruptions at the cores of rich galaxy clusters.- Steps toward a radio H-R diagram.- Where have all the old radio sources gone?.- Asymmetries in powerful radio galaxies.- Ultrahigh energy cosmic rays from Fanaroff Riley class II radio galaxies.- Summary of the workshop.

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Jets in extragalactic radio sources are among the most interesting objects studied in astrophysics. Improvements in the observational methods, including space telescopes, have significantly furthered both the observational situation and our theoretical understanding. The contributions to this volume report on the status of our present knowledge in a comprehensive survey of this field of research. They address specialists as well as graduate students in astrophysics.

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