• To my dear wife, Lydia, an exceptionally beautiful woman for asking me the questions that finally started me thinking about what a third Null-A novel should be about.
• For Jacques Sadoul, editor of J'ai Lu, who several times urged me to write a sequel.
• To Fred Pohl who, when he was editor of Galaxy Magazine, was the first person to ask me to write a Null-A sequel.
• To the late John W. Campbell, Jr., who - as editor of Astounding Science Fiction (now called Analog) - when he serialized "The World of Null-A", called it a "once-in-a-decade classic."
• For the late Jack Goodman, editor of Simon and Schuster, who printed a revised "World" in 1948 - the first post-WWII science-fiction novel put out in hard cover by a major publisher.
• For Raymond Healy, who recommended "World" to Jack Goodman.
• For Don Wollheim who, printed the first paperback edition of "World" in 1953, and later printed "Players" under the title "The Pawns of Null-A."
• To Count Alfred Korzybski, the Polish born mathematician, who formulated the Concepts of General Semantics, on which the Null-A novels are based. Korzybski's major work, "Science and Sanity," was first published in 1933, with the sub-heading: "An Introduction to Non-Aristotelian Systems and to General Semantics." The count died in 1950.

"Science and Sanity" is obtainable from the following:
Institute of General Semantics
3029 Eastern Avenue
Baltimore, Maryland 21224

International Society for General Semantics
Box 2469
San Francisco, Calif. 94126
(ISGS publishes a quarterly journal, Et Cetera)