Since the 1960s, the paintings of Raoul De Keyser have uniquely defined a place for themselves within the scope of contemporary art. De Keyser was born in 1930 and in the mid -1960s he joined, with Roger Raveel and Lucassen, New Vision, a group of painters interested in revitalizing earlier strains of European formalism. During the neneties, he has become an increasingly important figure in contemporary painting, having exhibited widely in Europe including Documenta IX in 1992. Influenced by the postwar American Modernist movement, De Keyser's canvases reference Color-field painting and Minimalism.

In 1995, Raoul De Keyser made a drawing for Hok, with poems by Roland Jooris. Limited edition of 36 copies printed on Velke Losiny 240 g. signed by both artists.
Ergo Pers is primarily a publisher of artists books, first editions of Dutch poetry and editions of French or English poetry in translation. Since its founding in 1995 Ergo Pers has brought together writers and artists to explore verbal and visual relations, such as Jürgen Partenheimer, Jan Voss, Jacques Dupin, Lucassen, Dan Van Severen, André du Bouchet, Yves Bonnefoy, Pierre Alechinsky, Pierre Reverdy and Jerome Rothenberg.