Simon Paul Berry, known by his alias Art of Trance, is an English trance music DJ. Berry is also known as Poltergeist or Vicious Circles, and has been a member of the trance groups Clanger, Conscious and Union Jack. He has been producing and remixing music since 1993. In addition to his work as an artist, Berry was the founder and head of Platipus Records, based in London. Initially his label only released his own tracks. His work was first distributed on vinyl and compact disc and then digital only from 2011.