This Sunday marks the opening of “Index: Conceptualism in California from the Permanent Collection,” an exhibition that surveys the evolution and scope of conceptual art by artists who have lived and worked in California. Curated by MOCA Curator Philipp Kaiser and Curatorial Assistant Corrina Peipon, the exhibition highlights over 60 artists and more than 200 works including collage, drawing, film, installation, photography, printmaking, sculpture and video. What is conceptual art? Sol LeWitt offers a definition:......