Terry Gross

Author Daniel Callahan. He is an expert on medical ethics whose latest book is "What Kind of Life: The Limits of Medical Progress." The book questions the assumption that everyone should receive the most life sustaining medical care available. According to Callahan, we need to change our thinking about health and illness and focus on the quality of life rather than the extension of life. (Interview by Sedge Thomson)

Writer Robertson Davies. He is one of Canada's pre-eminent novelists, the author of more than two dozen books, among which are the acclaimed novels "Fifth Business," "The Manticore and World of Wonders," which make up the "Deptford Trilogy." Davies latest book, "The Lyre of Orpheus," has just come out in paperback. For many years, Davies was a journalist, editing "The Peterborough Examiner," turning it into one of Canada's finest papers.

Journalist Eddy L. Harris. Harris' book, "Mississippi Solo," is Harris' chronicle of his 23-hundred mile journey down the Mississippi by canoe. This was by no means an idyllic voyage for a black man traveling alone, and Harris faced racism and the threat of violence, in addition to the normal problems of such a lengthy journey. (Interview by Sedge Thomson)

Critic at large Laurie Stone comments on stand-up comic Jimmy Tingle.

Street performer turned film actor Rick Aviles (a-VEEL-us). Aviles started out doing comedy on the streets of Manhattan, and was named "Comic of the Year" by the Village voice in 1980. He's since appeared in the movies "Mondo NY," "Street Smart," and "Spike of Bensonhurst." Aviles has a part in Jim Jarmusch's new movie, "Mystery Train."

Poet, critic and translator Robert Hass. He won the Yale Series of Younger Poets Award for his first volume of poetry, "Field Guide," published in 1973. He translated, with poet Robert Pinsky, Czeslaw Milosz's "The Separate Notebooks." His essays have appeared in The New York Review of Books, The New Republic, Antaeus, and Salmagundi. Many of those essays are collected in his book, "Twentieth Century Pleasures." Hass's new book, "Human Wishes," mixes verse, prose poems. and essays.

Film critic Stephen Schiff reviews "Glory," starring Matthew Broderick and Morgan Freeman. It's the true story of a black regiment during the Civil War.

Gladys Hansen is the archivist for the city of San Francisco. She's just written "Denial of Disaster," a book about the 1906 earthquake which corrects misinformation perpetuated about the quake.

Writer Timothy Ryback. He's just written a book chronicling the history of rock music in eastern Europe and the Soviet Union. In the book, "Rock around the Bloc," RYBACK shows how rock music has been a presence there from the mid-1950's beginning with the Elvis Craze, and continuing with Beatlemania, and punk and heavy metal music. The rock movement spawned officially sanctioned bands as well as underground groups. Ryback says the recent events in Eastern Europe were foreshadowed in 1988 when government policy on rock bands were loosened there.

Charles Solomon is the author of Enchanted Drawings: A History of Animation. His book traces the art form from the magic lantern shows of the 1600's through the silent films of the 1920's to such modern-day phenomena as Roger Rabbit and the California Raisins.