Twenty eight history professors combine in a mass effort -- each producing a biographical essay on his special subject. The diplomacy makers referred to in the title range from such standard choices as Benjamin Franklin, Jefferson, Hamilton, Monroe and Kissinger to the little known and largely forgotten Willard D. Straight, James T. Shotwell and Stanley K. Hornbeck. The essays are, for the most part, scholarly and well researched, and each carries a bibliographical note citing documentation. Few of the sketches contain anything new or exciting, and most of them assume a wide prior knowledge of history in the reader. A good, sturdy undergraduate text, and a useful reference book, but inclined to dullness.