Photo by user AndrewRH / Wikimedia Commons

Æsopus by Diego Velásquez, 1739-40.

Rod Delroy

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

Szymon Sokół

Photograph by Thora Hallager, 1867, Copenhagen

©Rowena

George Whiteside

Courtesy of the Perry-Castañeda Library, University of Texas at Austin.

Tim Duncan

© dejahthoris : http://commons.wikimedia.org/wiki/Image:Max_Barry_1.JPG

Topham Picturepoint

By Marci Malinowycz, © 1999.

Lloyd Biggle, Jr. (1923-2002) (from Life in Legacy.com)

www.vjbooks.com

Via Wikipedia

Source: "Portrait Gallery of Eminent Men and Women
in Europe and America," by Evert A. Duyckinick
(New York, 1873)
(colored by Jan Arkesteijn)

Photo by Lars-Olov Strandberg,
Eurocon5, Stresa, Italy, 1980.
Copyright © Lars-Olov Strandberg

David Dyer-Bennet

Seamus Kearney

photo by S. Reynolds at NorWesCon, Seattle WA USA , 2006-04-14

Elze Hamilton

Photo by Yousuf Karsh, Dec. 30, 1941, Ottawa, Ont.
(Yousuf Karsh / Library and Archives Canada / PA-165806)

Arthur C. Clarke (9-9-2005), cropped. Photo by Anuradha Ratnaweera (anuradha on flickr.com)

Photo by user Dd-b / Wikimedia Commons

Credit: Kathryn Cramer

Ivan Helmer

Photo by James Duncan Davidson/O'Reilly Media
at the 2006 O'Reilly Emerging Technology Conference,
held March 6-9 in San Diego, CA

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

Photo by Jon Evans

John M. Ford, 2003. Photo by David Dyer-Bennet / Wikimedia Commons.

from Lifeinlegacy.com

William John Thomson

John Burlinson

Courtesy of Jane Murray Flutter.

Image from Kitchener's Mob: The Adventures of an American in the British Army (1916) by James Norman Hall

Photo by Robin Schindler

From Wikipedia

Flickr user jwa_org

www.vjbooks.com

Photo: J.D. Sloan

Credit: Ellen Levy Finch, 1998, Seattle, Wash.

Photo taken Aug. 11, 2006 Copyright © Johan Anglemark, 2006 (image use requires permission of Johan Anglemark)

Photo by A. Monette

Cory Doctorow, September 1, 2007

Larry Niven (1938- ) (Wikipedia)

Author: Branch of the National Union of Journalists (BNUJ). Source: http://www.netcharles.com/orwell/

Photo from Murder in the Gunroom (1953) dust jacket

(C) Bill Thompson's eyeonbooks.com

paloma.cl

JP K1001

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

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

S.P. Somtow

taleswapper

By Mark Pellegrini, at ACM CFP-2006 (L'Enfant Plaza Hotel, Washington DC), May 5, 2006.

Photo by bluinfaccia / flickr

Permission of Locus Publications www.locusmag.com

photo by Carl Van Vechten, Library of Congress, Prints and Photographs Division, Van Vechten Collection, reproduction number LC-USZ62-42514

Credit: Ellen Levy Finch, 1998, Seattle, Washington

from Wikimedia Commons, uploaded by Dd-b

At Discon II, by David Dyer-Bennet.