In 1956 Stephane was sent to one of the communist concentration camps Belene located on the Persin Island, Danube river, where he has spent 14 months.
After completing his obligatory military service Stephane Valev worked for several years as free-lance illustrator and graphic artist until he has joined the Central Institute for Industrial Esthetic (in Bulgarian Централен Институт за Промишлена Естетика, ЦИПЕ)[2] in Sofia.
Creator of various installations and decorative elements in the National Palace of Culture and The Funeral House in Sofia, hundreds of logos, illustrations, posters, industrial design etc.
He has rebuilt the graphic identity of the State Agency for the Bulgarians Abroad and its magazine "Echo".
In 2008 he publishes a contemporary poetry book called "The altar of destruction" (Bulgarian: Олтара на опустошението) (ISBN 978-954-427-778-9),[7][8][9] illustrated by himself.