Listen to Harry Holtzman’s own words describing his friendship with Piet Mondrian:
(From a lecture in Spain, 1975, titled: “My friend Piet Mondrian”, “Mi amigo Piet Mondrian” Courtesy, The Fundacion Juan March, from the “Conferencia inugural de la exposition Piet Mondrian”)
Follow link below to audio clip:
http://www.march.es/conferencias/anteriores/voz.aspx?id=1365
Harry Holtzman, in his studio, Lyme, Connecticut, 1986.