This is a sad day for me. Sol LeWitt is dead. He was and still is a massive influence on me in terms of understanding art, making art, and looking at it. After I saw his retrospective in 2000 at SFMOMA, I felt that I finally had an entrée into the obtuse art practice that I saw all around but previously felt was impenetrable. His Sentences on Conceptual Art and Paragraphs on Conceptual Art have been guides to me and I mourn his loss. Here’s a very nice obituary by Michael Kimmelman in the New York Times.