The author, Dr. Gavin Francis, arrived at Halley base on Christmas Eve 2002, at the height of the Antarctic midsummer, when 24-hour sunlight illuminates the vast swathes of empty ice. Courtesy of Gavin Francis hide caption

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Mexican writer Valeria Luiselli is the author of the novel Faces in the Crowd and the book of essays Sidewalks. She is currently working on the novel The Story of My Teeth. Alfredo Pelcastre/Coffee House Press hide caption

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Captain America made his debut for Marvel in 1941, as the incarnation of American patriotic fervor during World War II. Marvel Comics/AP hide caption

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John Cleese, pictured above in 1976 with Monty Python's Flying Circus (from left, Cleese, Michael Palin, Terry Gilliam and Terry Jones), says he worked hard to learn physical comedy by imitation — "It was not something I was naturally gifted at," he says. AP hide caption

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Jacqueline Woodson has published 30 books, and won three Newbery honors and a Coretta Scott King Book Award for her young adult book Miracle's Boys. Marty Umans/Courtesy of Penguin Group USA hide caption

itoggle caption Marty Umans/Courtesy of Penguin Group USA

British mystery writer P.D. James wrote 18 novels, seven of which were adapted for the public television series Mystery. She died Thursday at the age of 94. Henny Ray Abrams/AP hide caption

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Free-range chickens stand in a pen at an organic-accredited poultry farm in Germany. Joern Pollex/Getty Images hide caption

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Former President George W. Bush (right) and his father, former President George H.W. Bush, wave as they leave a family wedding in Washington, D.C., in May 2006. Normand Blouin-Pool/Getty Images hide caption

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David Quammen's new book is an extended excerpt of his previous one, Spillover, which explored how dangerous pathogens jump from animals to people. Courtesy of David Quammen hide caption

itoggle caption Courtesy of David Quammen

In Mallory Ortberg's modern retelling of Charles Dickens' Great Expectations, Miss Havisham texts wedding dress photos from a blocked number. Madeline Gobbo/Courtesy of Henry Holt & Company hide caption

itoggle caption Madeline Gobbo/Courtesy of Henry Holt & Company