[en] Nuclear Training Centre Ljubljana was established in 1989 and a few years later its activity expanded from pure professional training to public information, as well. The goal was to achieve better social acceptance of nuclear power in Slovenia which was very low in early 1990's. We focused on schoolchildren and other organized groups and since then we had more than 120,000 visitors. The mainstays of our activity are a live lecture and a permanent exhibition. In the recent years the Nuclear Information Centre and its web site www.icjt.org has also become a respected source of information for the media and the general public. In the first few years it was quite hard to notice any improvement in public attitude and even later, when nuclear power became less controversial, it was difficult to link this change to the activities of the Nuclear Information Centre. Recently, however, several independent polls on a representative sample of general population proved that in a long term, our activities did have tangible results and that Nuclear Information Centre as part of Jozef Stefan Institute is regarded as trusted source of information. An Eurobarometer poll showed that Slovenia ranked among the first three countries in Europe regarding knowledge of nuclear waste issues in Europe. Another poll showed that Jozef Stefan Institute is the most trusted institution on radioactive waste issues. A third independent poll showed that the knowledge and the attitude towards nuclear is most favorable in the youngest age group of general population, i.e., many of whom have previously visited the Nuclear Information Centre. These are all indications that the activities of the Nuclear Information Centre have contributed to a measurable change in the public opinion and knowledge of nuclear issues in Slovenia. Furthermore this shows that informing youngsters is a very long term activity and that first tangible results can only be expected in 15 years or so. On the other hand, however, informing youngsters penetrates the society in a very broad manner and thus makes it less susceptible to superficial claims of antinuclear activists.(author).