Quote from Introduction:

I remember when it was all done in first draft telling Gene Wolfe, who is the wisest writer I know and has written more excellent novels than any man I’ve met, that I thought I had now learned how to write a novel. Gene looked at me, and smiled kindly. “You never learn how to write a novel,” he told me. “You only learn to write the novel you’re on.”

Gaiman, Neil. 2021. American Gods: A Novel. 10th Anniversary. New York: William Morrow Paperbacks.