Joe Miranda, EditorPaul Johnson, Editorial AssistantBen McCanna, Project Manager

Design and typography by Shelley Himmelstein.This book was composed in Latin 725, Latin Extra Condensed, ITC Franklin Gothic,Bank Gothic, AT Sackers Gothic, and Coronet Bold.

Cover design by Jennifer Crisp.Cover art: “Ambiguous Cube: Wood,” by Tony Azevedo.Back cover art: (Top) “Three-stick Clevis,” by D. H. Shuster; (bottom) “Magic Head,”from Upside-Down Heads (Redstone Press, 1998).

Prepress by Jay’s Publishers Services.Printed on Somerset Matte by RR Donnelley & Sons Company, Willard.

Published in 2002 byRoutledge29 West 35th StreetNew York, New York 10001www.routledge-ny.com

Published in Great Britain byRoutledge11 New Fetter LaneLondon EC4P 4EEwww.routledge.co.uk ...

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