Petr Simon founded the Gallery 5th Floor in 2006. He renamed it in 2011 to Gallery 1st floor, a private gallery focused on contemporary Czech and international art and photography. Gallery during its existence became widely perceived part of Czech contemporary art scene. So far it held nearly 60 exhibitions, thematic, group and individual artists from shortlist of the gallery. Gallery program oscillates between photography and fine art and it represents artists of all generations. Gallery participated in Czech fairs Art Prague, Prague Foto and Brno Art Fair. Gallery focused from the beginning on editorial activities. As an accompaniment of selected exhibitions gallery originats editions on DVD, catalogs and art prints.