March, 1968 A Museum of Language in the Vicinity of Art by Robert Smithson (includes: Carl Andre, Jo Baer, Dan Flavin, Dan Graham, Peter Hutchinson, Sol LeWitt, Robert Morris, Claes Oldenburg, Ad Reinhardt, Edward Ruscha) / Michelangelo Pistoletto at Ileana Sonnabend
April 20, 1968  A Compilation for Robert Mangold by Mel Bochner / Architectural Revolutions Visualized by Lucy Lippard / Edward Kienholz: A Sentimental Journeyman by Jo Baer / Artists on Their Art (including: Hanne Darboven, and Hans Haacke) Buenos Aires (including David Lamelas, Sol LeWitt, Robert Morris, and Oscar Bony) /  Sol LeWitt at Dwan
May 15, 1968 Minimal Art at the Hague (including: Carl Andre, Dan Flavin, Donald Judd, Sol LeWitt, Robert Morris, and Robert Smithson) / Artists on Their Art (including: Richard Tuttle) / Paris (including: Robert Morris at Ileana Sonnabend / New York Letter (including Robert Smithson at Dwan) / advertisement for Christo at Documenta IV
May 20, 1969  London Letter (including Helio Oiticica) / Letter from Holland (including: discussion of Square Peg in Round Holes and When Attitudes Become Form, Carl Andre, Anselmo, Ger van Elk, Michael Heizer, Douglas Huebler, Joseph Kosuth, Robert Morris, Alan Serat, Robert Smithson, Lawrence Weiner +) also discussion of Lippard's Eccentric Abstraction / Schweizer Brief (in German) Live in your head - When attitudes become form / Advertisement for Carl Andre at Dwan (periodic chart)
November, 1969  Time: A Panel Discussion (including: Carl Andre, Douglas Huebler, Lucy Lippard, Seth Siegelaub, and Ian Wilson) / New York (including: Christo, Barry Flanagan, Robert Morris, and Claes Oldenburg)
Summer, 1990 Art in Eastern Europe / London: Metamorphic Strategies (including Richard Long, and Michael Heizer) / New York: Revivals and Survivals (including Mac Adams, Jenny Holzer, and Ilya Kabakov) / Shape is Not Abstract (including Richard Tuttle) / Venice Preview (including: Bernd and Hilla Becher, and Jenny Holzer)