Cover for the 1976 paperback edition of The Stochastic Man by Robert Silverberg, published by Fawcett Gold Medal.
The novel's title and author's name are tightly set in Allen Cubist, a typeface by John Allen for Photo-Lettering, Inc., first shown in the 1963 Supplement. The a’s seen on the front cover look to have had legs added. Additional text is set in Antique Olive.
Cover artist/designer currently unknown.