and essays by Raymond Coffer...[et al. and essays by Michael Fried...[et al. essays by Kay Heymer...[et al. essays by Lynne Cooke...[et al. with essays by Marco Biffi ...[et al. and essays by Vivian Endicott Barnett...[et al. with essays by Gianni Jetzer...[et al. essays by Aaron Betsky...[et al. essays by Alison Fisher ... [et al. essays by Jed Morse...[et al.