Sketching For Animation feels like an academic book to me, and it's priced like one too at USD $49. The book looks at the overall view of sketching and how it's useful for animation. The subjects discussed are using shapes, perspective, drawing figures, landscapes, capturing movement, developing ideas, characters and layout and composition. There are tips and techniques being
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Sketching for Animation: Developing Ideas, Characters and Layouts in Your Sketchbook by Peter Parr, Paperback
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Sketching for Animation: Developing Ideas, Characters and Layouts in Your Sketchbook (Required Reading Range): 9781474221443: Parr, Peter: Books