"Intelligent Life in the Universe" by I. S. Shklovskii and Carl Sagan

From the back of the book (1966): This book, the product of a unique collaboration between a world-famous Russian astronomer and a leading American space scientist, is the first popular and modern discussion of the entire panorama of natural evolution. It covers the origins of the universe, the evolution of stars and planets, the beginnings of life on Earth, and the development of intelligence and technical civilizations among galactic communities. While acknowledgedly speculative in many places -- in the detailed discussions of interstellar contact, for example -- Intelligent Life in the Universe is an outstanding summary of the present state of scientific knowledge and philosophical interest in these arresting areas of contemporary research.

This copy is in good vintage condition, with one heavy crease in the spine.