Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 66.During the week of June 4-8, 1990, a Chapman Conference on Venus and Atmospheres, Ionospheres and Solar Wind Interactions was held at Balatonfüred, Hungary. The meeting was coorganized by J. G. Luhmann and M. Tatrallyay, under the auspices of the AGU and the Hungarian Academy of Sciences. Aprroximately 85 participants attended some 72 presentations in oral and poster form. The topics on which the sessions focused included atmosphere evolution, present atmospheres, exospheres and ionospheres, solar wind interactions, and past and future missions. The international and multidisciplinary makeup of the audience provided the basis for a wide range of discussions and brought out a number of remaining controversies and questions to be answered by future research.