The following topics were dealt with: atmospheric optics, image quality, the Gran Telescopio Canarias project, site testing, meteorological effects, the Galileo Telescope, the Half Arcsecond Programme, the Nordic Optical Telescope, wide-field wavefront sensing, adaptive optics, JOSE site evaluation, the William Herschel Telescope, the Swedish Vacuum Solar Telescope, the Dutch Open Telescope, CLEAR, solar scintillometry, the German Vacuum Tower Telescope, THEMIS, night sky brightness, street lighting adaptation on La Palma, solar measurements at Teide Observatory, Saharan dust and extinction, IR sky quality, water vapour monitoring, the HEGRA detector, and very large telescopes.