By Carl Purcell ISBN 158180993X; $24.99; 128 pages; Paperback Introduction: 8 Materials and Studio Suggestions: 10 Developing Good Technique: 12 The Two Brains: 30 Seeing Shapes: 44 Seeing the Shape of Space: 60 Seeing the Shapes of Value: 76 Building a Painting on Value Patterns: 88 Ensuring a Strong Center of Interest: 110 Conclusion: 124 Index: 126