Softcover binding has light shelfwear to edges of covers. Pages tight and clean with some yellowing due to age. Spine has small creases with tilt. 267 pages. MMP Binding. Year: 1989. ISBN: 0345362691. Earth's scientists had long searched the heavens for a sign that humanity was not alone. For decades the hunt had been fruitless, until a young graduate student recognized a surprising pattern to seemingly random signals from the direction of the constellation Cepheus. What was more, the signals carried a message, the first communication from an alien race, providing a wealth of knowledge far more advanced than human science.