From 1968 until 1989, Art & Project ( Adriaan van Ravesteijn  and Geert van Beijeren ) published their "Bulletin" and other mail art publications. The total number of these Bulletins was 156 in a period of  21 years.. After this period they moved to Slootdorp to continue their gallery Art & Project. Many iconic exhibitions have taken place in all these years

These publications and invitations have now become quintessential in the history of Modern Art.