The Dragons of Eden by Carl Sagan is a 263-page softcover published in 1977 by Random House New York. The cover has some mild shelf wear and a faint crease across the back cover corner. Inside, the pages are clean.
"A wise, witty, well-informed, up-to-the-minute account of the evolution of intelligence, and a much-needed antidote to the still-rising tide of irrational psychology and occult nonsense. No one can read it without acquiring a deeper, saner understanding of the powers and limitations of that mysterious minicomputer just above and behind one's eyes." --Martin Gardner