Author of children's books Chris Van Allsburg (right) and NASA engineer Jennifer Keyes (center) speak with Digital Learning Network host Rachael Manzer during a live videoconference on Nov. 16 at Langley Research Center. Photo by Jeff Caplan. (nasa.gov)

Photographed at BookPeople in Austin, Texas

From the collection of the U.S. National Library of Medicine, Bethesda, MD.

Courtesy of Erik Brooks

Photographed at BookPeople in Austin, Texas

Peter Goode

© Jess Barber 2004

Arkansas Literary Festival 2007, photo by David W. Quinn

Taken by Harold Cazneaux, 1931

Library of Congress

Courtesy of Mercer Mayer

Courtesy of the NYPL Digital Gallery (image use requires permission from the New York Public Library)

Tom Marcello, 1977

Photographed at BookPeople in Austin, Texas

Stuart O'Sullivan

Photographed at BookPeople in Austin, Texas

Photographed at BookPeople in Austin, Texas

Milton Viorst

Library of Congress

Credit: David Shankbone, Sept. 2007