RESTful Web APIs, O'Reilly and Associates, September 2013.
"How to Follow Instructions". Talk presented at QCon New York, October 2012.
Constellation Games, Candlemark & Gleam, 2012. Science fiction.
"Developers Like Hypermedia, But They Don't Like Web Browsers". Paper presented at WS-REST 2010.
"Let Us Now Praise Awesome Dinosaurs", Strange Horizons, July 2009. Science fiction.
"Justice Will Take us Millions of Intricate Moves". Presentation given at QCon 2008.
RESTful Web Services, O'Reilly and Associates. May 2007.
"Unit Testing Your Documentation". O'Reilly Network. September 2006.
Ruby Cookbook, O'Reilly and Associates. July 2006. Finalist, 2007 Jolt Awards.
Beginning Python, Wiley Books. July 2005. (Co-author)
"The Ultra Gleeper: A Recommendation Engine for Web Pages". Presented at CodeCon 2005.
Beautiful Soup (http://www.crummy.com/software/BeautifulSoup/)
An HTML parser that makes screen-scraping easy.
Annotate Zope interfaces to produce RESTful web services
The original Zen simulation.
More at http://www.crummy.com/software/