Virtually every novelist in America fantasizes about being picked to appear on Oprah Winfrey’s talk show. But now an increasing number of writers have discovered a new champion: Glenn Beck, the outspoken media darling of populist conservatism.

On his radio show and cable television programs, first on CNN Headline News and now on the Fox News Channel, Mr. Beck has enthusiastically endorsed dozens of novelists, a majority of them writing in the thriller genre. Mr. Beck, who now attracts 9 million weekly listeners on radio and 2.7 million daily viewers on television, often selects authors whose plots or characters reflect political stances that mirror his own. But he also promotes the work of authors who may disagree with many of his views.

“He’s our Oprah,” said Brad Thor, a writer of political thrillers who has appeared on Mr. Beck’s radio and television programs several times. “God love him, we’re very fortunate.”

At a time when the book industry is struggling to maintain, much less increase, sales, publishers and authors say an appearance on Mr. Beck’s television or radio programs helps attract new readers. After James Rollins, the author of “The Doomsday Key,” a thriller about a group of Defense Department scientists trying to solve an ancient mystery, appeared this past summer on Mr. Beck’s radio program and then his television show  on which Mr. Beck promised viewers “it will keep you on the edge of your seat  Mr. Rollins met several people at a book signing who told him they had bought the book based on that recommendation, he said.