To create his “Poemfields” (1965-71) series, VanDerBeek worked closely with computer scientist Ken Knowlton and the staff at Bell Labs. Each “Poemfield” was adapted from poems by VanDerBeek, programmed on an IBM 7094 computer in black and white using a custom language known as BEFLIX, and colored after the fact by artists Robert Brown and Frank Olvey.