The first student seminar was also held in Bled from 11–13 July 1966 and the theme was 'Breaking the Language Barrier with Signs and Symbols'. In addition, the production of "Equality of Man", a film project for students and young people in support of the United Nations Human Rights Year, was the first of several Icograda collaborations with International Animated Film Association (ASIFA)  The third Icograda Congress 'Design Destinations in a Changing World' was held in 1968 in Eindhoven. An exhibition of Belgian graphics was organised by Michel Olyff at the same time and the entire congress decamped to Brussels for a day. ""Sachez que tout en ce monde n’est que signes et signes de signes"" (Know that all in the world is only signs and signs of signs), were the words of Marcel Schwab quoted by Alderman van der Harten in opening the congress. Der Harten went on to make observations about communication, information systems, symbols, codes and signals, "but away from the congress there were different signs that could not be ignored." The 1968 Congress coincided with the end of the Prague Spring. As the tanks rolled into Czechoslovakia the congress paused in a moment of silent respect. As the crisis deepened over the next few days Netherlanders offered hospitality to those wishing to stay on in the country for a few days, and many of the delegates marched, protested and petitioned their embassies as military repression threatened the freedoms of friends and colleagues. Whilst the SIAD had facilitated the inaugural meeting in London five years before, it must be remembered that most of the founders of Icograda were central Europeans, an assortment of Yugoslav, Austrian, German, Polish and Hungarian political émigrés who had made their home in the UK to escape persecution. The response of the Congress was therefore only to be expected. Presentations from Teunissen van Manen, Richard Gregory, Benno Wissing, Jerome Gould, and Massimo Vignelli, were thus overshadowed by political events. At the 3rd Icograda General Assembly FHK Henrion was elected President and Pieter Brattinga re-elected Secretary-General. In addition, the book "ICOGRADA The First Five Years" by Wynkyn de Worde, was published and Icograda was commissioned by UNESCO to produce their first series of slides on graphic design. In 1971 the fourth General Assembly was held in Vienna, John Halas was elected President, and Marijke Singer Secretary-General.