Signed book: Synergetics: Explorations in the Geometry of Thinking. First edition, first printing. NY: Macmillan, 1975. Hardcover with dust jacket, 6.5 x 9.5, 876 pages. Signed and inscribed on the half-title page in black felt tip, "To Betty and Bob Guinn, in friendship, Buckminster Fuller, Nov. 22, 1978." In very good to fine condition, with wear to the dust jacket, and cracking to the front hinge.
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