Terry Gross

He's part of the free-jazz movement in New York City (along with saxophonist David S. Ware, bassist William Parker and violinist Mat Maneri). One of his influences has been avante-garde pianist Cecil Taylor. Shipp's style has been described as "a distinctive combination of Mr. Taylor's percussive attack and Chopin's languid rubatos." He's been recording since the early 1990s, and has over 20 albums to his credit as leader and sideman. Since 1999, Shipp has been artistic director the Thirsty Ear Records' Blue Series.

Founder and owner of the Chicago-based jazz and blues label Delmark, Bob Koester. The label celebrates its 50th anniversary this year. Artists Junior Wells, Little Walter, Big Joe Williams, Coleman Hawkings, Muhal Richard Abrams and Sun Ra & The Arkestra have all recorded on the label. Delmark has issued a 50th-anniversary collection.

He's a longtime correspondent on health and science policy for The New York Times. In his new book, Protecting America's Health: the FDA, Business, and One Hundred Years of Regulation, he chronicles the history of the Food and Drug Administration from its start during the administration of Teddy Roosevelt. Hilts also broke the now-famous story of the Brown and Williamson tobacco industry papers, and is the author of Smoke Screen: The Truth Behind the Tobacco Industry Cover-Up.

Ravitch is the author of the new book, The Language Police: How Pressure Groups Restrict What Students Learn. In her book she chronicles the efforts of school boards and bias and sensitivity committees to edit and shape the textbooks that end up in classrooms. Some examples of this include: omitting the mention of Jews in an Isaac Bashevis Singer story about prewar Poland, changing the expression "My God!" to "You don't mean it," and recommending that children not be shown as disobedient or in conflict with adults.

She is professor of history at the University of Toronto and the author of the new book, Paris 1919: Six Months That Changed the World, about the Peace Conference after World War I in which delegations from around the world convened to find an alternative to war. During the six months of the conference, new boundaries were drawn up in the Middle East. Out of that conference Iraq was born, and was for a time under British control. MacMillan's book, published under the title Peacemakers in England, was the winner of the Samuel Johnson Prize.

Willie Nelson turns 70 years old next week. We mark the occasion with a 1996 interview and in-studio performance; the country-music icon tells Terry Gross about the genesis of songs like "Family Bible" and "Crazy" — the song Patsy Cline turned into a country classic — and gets out his guitar for intimate, idiosyncratic performances of several landmark tunes.

In his new book, The Unconquerable World: Power, Nonviolence, and the Will of the People, he rethinks the relationship between war and political power. Schell writes that military power is not as effective as it once was, and that a more useful approach is one of cooperation with other nations. Schell is also the author of the 1982 classic The Fate of the Earth. He has written for The Nation, The New Yorker, Harper's Magazine and The Atlantic Monthly.

Alex Berenson is a financial investigative reporter for the New York Times. In his new book The Number: How the Drive for Quarterly Earnings Corrupted Wall Street and Corporate America, Berenson examines the corporate scandals at Worldcom, Halliburton, Computer Associates, Tyco, and others, looking at practices that were common to all.

Writer, actor, director, comedian and host of Le Show, Harry Shearer. He's starring in the new folk music mockumentary A Mighty Wind, directed by Christopher Guest, who also directed Best in Show and Waiting for Guffman. Shearer also starred with Guest in the classic heavy metal parody This is Spinal Tap. Shearer's public radio show is now in its 19th year.

Friedman will discuss the post-Saddam Middle East. Friedman's best-selling book is Longitudes and Attitudes: Exploring the World After September 11. He has won two Pulitzer Prizes for his coverage of the Middle East.