Eric S. Raymond
Eric S. Raymond Raymond at Linucon 2004 Born (1957-12-04) December 4, 1957 (age 57) Boston, Massachusetts Residence Pennsylvania Nationality American Alma mater University of Pennsylvania (dropped out) Occupation Software developer, author Website www.catb.org/~esr/ Eric Steven Raymond (born December 4, 1957), often referred to as ESR, is an American software developer, author of the widely cited 1997 book The Cathedral and the Bazaar and other works, and open source software advocate. He wrote a guidebook for the Roguelike game Nethack. In the 1990s, he edited and updated the Jargon File, currently in print as the The New Hacker's Dictionary.