To Poul Anderson,
In learning to write science fiction, I have had many great models, but Poul Anderson’s work has meant more to me than any other. Beyond that, Poul has provided me and the world with an enormous treasure of wonderful, entertaining stories—and he continues to do so.
On a personal note, I will always be grateful to Poul and Karen Anderson for the hospitality that they showed a certain young science-fiction writer back in the 1960s.
I am grateful for the advice and help of: Robert Cademy, John Carroll, Howard L. Davidson, Bob Fleming, Leonard Foner, Michael Gannis, Jay R. Hill, Eric Hughes, Sharon Jarvis, Yoji Kondo, Cherie Kushner, Tim May, Keith Mayers, Mary Q. Smith, and Joan D. Vinge.
I am very grateful to James Frenkel for the wonderful job of editing he has done with this book and for his timely insight on problems with the earlier drafts.