Foreword / Connie Wolf and Alison Gass -- Private to Public / Gretchen Diebenkorn Grant -- Understanding Diebenkorn / Steven A. Nash -- Two Sides of a Coin: Reflections on Artistic Practice / Enrique Chagoya -- The Ace of Spades / Alexander Nemerov -- (With)Drawing from Mastery / Peggy Phelan -- The Sketchbooks -- Notes to Myself of Beginning a Painting / Richard Diebenkorn