"Proof" is a vintage first edition novel by Dick Francis, published in 1985 by G.P. Putnam's Sons. This collectible mystery book is a part of the Fiction genre, with a narrative that is suitable for adults. The hardcover format and dust jacket add to its authenticity and value as a vintage piece from the 1980s. With a total of 334 pages, this novel is a must-have for any fan of mystery and detective fiction.