Written between 1973 and 1976 by Paul Magriel and Renée Magriel, Backgammon was the first book to lucidly explain the inner workings and advanced positional play of the game. The most important aspects are broken down into their component parts and then explained with a unique, easy-to-understand, step-by-step building-block approach. The book is enhanced by 600 clear and precise diagrams, a glossary and tables, including the betting odds. For any player who means to take the game seriously and wants to play well, Backgammon is an indispensable guide. This new 2004 edition of also includes a lively behind-the-scenes foreword by Renée Magriel Roberts that illuminates the man behind the name "X-22" and describes the creation of the book. Having stood the test of time for over a quarter-century, Backgammon is still the best and most widely recommended and quoted standard instructional manual and reference work on the game for novice and expert alike.

    Originally written to define the relation between the theories of transfinite numbers and mathematical games, the resulting work is a mathematically sophisticated but eminently enjoyable guide to game theory. By defining numbers as the strengths of positions in certain games, the author arrives at a new class, the surreal numbers, that includes both real numbers and ordinal numbers. These surreal numbers are applied in the author's mathematical analysis of game strategies. The additions to the Second Edition present recent developments in the area of mathematical game theory, with a concentration on surreal numbers and the additive theory of partizan games.

    Many of the "New Games" may now be seen played, in their modern variants, by church youth groups, summer campers, and even [in some cases] gym students.

    Originally serialized in the magazine Igo Shinjo in Japanese under the title Shodan Kakutoku Saitan Kosu.