Exhibition catalogue published in conjunction with show held July 25 - August 30, 1970. Includes writing on LeWitt's work by Carl Andre, Terry Atkinson, Mel Bochner, John N. Chandler, Enoo Develing, Dan Flavin, Dan Graham, Coosje Kapteyn-van Bruggen, Eva Hesse, Michael Kirby, Rosalind Krauss, Ira Licht, Lucy R. Lippard, Dick van der Net, Barbara M. Reise, Hans Strelow and Lawrence Weiner. Also includes list of projects, plans and proposals, biography, bibliography and exhibition history. The exhibition was dedicated to Eva Hesse, who passed away a few months before the opening of the exhibition. Catalogue design by LeWitt. Text in English.