We promised not to reveal who is behind National Ghost Writer Week, but we can't resist giving a wink to those folks who quietly write for and in the name of another. (来源：英语学习门户 http://www.EnglishCN.com)

As you might expect from people who are paid to keep quiet, ghost writers tend to be read and not talked about. Sometimes, of course, the light shines on the ghosts. That was the case with the Stratemeyer Syndicate, publisher of the Nancy Drew mystery books. Half a century after The Secret of the Old Clock, a court case revealed that Mildred Wirt Benson, then in her 70s, had been the original ghostwriter of the beloved series.

After the secret of Carolyn Keene's identity had been revealed, it was less than shocking to hear former president Ronald Reagan joke about his autobiography "I hear it's a terrific book! One of these days I'm going to read it myself."

Does this mean that ghostwriters are now working out in the open? Not necessarily, but the term literary collaborator can be a tipoff. And, just for fun, try keeping track of names in the acknowledgment and credit sections of books.