Terry Gross

Saudi Arabian-Born Ambah is participating in the five-day Muslim pilgrimage (known as the "hajj") to Mecca, Saudi Arabia. It began on Jan. 30. She is traveling with her two sisters. Over the weekend, 244 people were crushed to death in a stampede. Ambah is writing about her journey for The Christian Science Monitor. She now makes her home in Arlington, Va.

Groopman is author of The Anatomy of Hope. Groopman teaches at the Harvard Medical School and is chief of experimental medicine at the Beth Israel Deaconess Medical Center in Boston. He also writes about medicine and biology for The New Yorker.

Photographer Rosamond Purcell's new book, Owls Head, is about her 20-year friendship with William Buckminster, an eccentric collector whose dilapidated antiques shop and 11-acre junkyard in Maine became something of a tourist attraction. Buckminster sold many of his items to Purcell, who took them home and photographed them in large-format Polaroids. Purcell, who's been called the "doyenne of decay," has also collaborated three times on books with the late paleontologist and science historian Stephen Jay Gould.