The fair, for young people between ten and twenty, is held at the convention center in the Stockholm suburb Älvsjö. In 2014, around 12,000 attended the fair.
Festival organizer Gunnar Svensson says there were even more this year.
Some of the issues discussed at the fair include transexuality and also feminism. Gunnar Svensson says to Radio Sweden he thinks the organisers have a responsibility to make sure the fair goers get exposed to important issues.