Virtual Environments (VE) - the new dimension in man-machine communication - have been developed and experienced in Europe since 1990. In September 1993, the first workshop on VEs was held in Barcelona, Spain, in conjunction with the annual "Eurographics" conference. The workshop brought together 35 researchers from Europe and the USA. The second worshop was held, together with "Imagina '95", in Monte Carlo, Monaco. This time, 40 researchers from Europe and the USA, as well as Asia, met for a two-day exchange of experience. While in the first workshop in 1993 many concepts in VE were presented, the '95 workshop showed up various applications in different areas and demonstrated quite clearly that virtual environments are now under use in interactive applications. The book contains 22 selected and revised papers that have been presented in EG workshops in Barcelona and Monte Carlo. The areas covered are visual presentation aspects, gesture and speech, interaction issues, applications and VE systems, demonstrating the emphasis and the results of various research activities in the field.