Index Accuracy, and observational skills, 22-25 Aerial perspective, 101 Alignment checking with vertical & horizontal lines, 87-88 detecting problem with, 92-93 Angles detecting problem with, 92-93 of light, 131 verifying, 90-95 Atmospheric haze, 101 Balance human figure in, 49 of positive and negative shapes, 34-35 Beachcomber, 72-73 Blending tools, 14, 142 to soften value changes, 37, 95, 126 Blind contour drawing, 26-30 Blossoms, main shapes, 39-40 Boats, 92-95 Body proportions, young children, 48 Body shapes, animals, 42-43 Bottles, 120 Bowl, pottery, 78-79 Buildings, 84-85 Contour lines, to suggest texture, 142-143 Contrast strong, and edges, 138-139 varying, and visual impact, 122 Core shadow, 123 Cougar, 36 Creek, 140-141 Criss-cross strokes, for hair and grass, 156-157 Crosshatching, 122 to create rough texture, 144-145 Cylinders, 50-51 Deer, 86-89 Depth creating, 100-101 illusion of, 99 Details, decreased, for distant objects, 101 Distance creating, 100-101 objects receding into, 99 Distortion, 128 Dog, skeletal structure, 44 Drama, creating, 138-139 Drawing, styles, 26-27 Drawing surfaces, 15 Fur. See Hair texture Gables, verifying angles, 90-91 Gesture sketches, 26-27, 32-33 Girl, and goat, 127 Glass objects, 120, 128 Graphite pencils, 10-11 Grid when drawing from photo, 67 working with, 84-85 Gridvu, 15, 84 Guidelines to gauge symmetry, 76-79 marking mid-points, 72 Hair texture, 156-157 Hand, 51 Hatch marks, 122 for rough texture, 144 Height finding mid-point in subject, 62-66 illusion of, with three point perspective, 116 Highlights, 123, 125 Horizon line, 102-105 and artist's point of view, 99