- Open Space Technology: A User's Guide by Harrison Owen, January, 1998
- Collected Works of Larry Wos : Applying Automated Reasoning to Puzzles, Problems, and Open Questions (2 volume set) by Larry Wos, Gail W. Pieper, March, 2001
- The Open Conspiracy : H.G. Wells on World Revolution by W. Warren Wagar, October, 2001
- Expanding Our Now: The Story of Open Space Technology by Harrison Owen, January, 1998
- Stop Crying at Your Own Movies: How to Solve Personal Problems and Open Your Life to Its Full Potential Using the Vector Method by George Burtt, June, 1975
- Transformation Thinking: Tools and Techniques That Open the Door to Powerful New Thinking for Every Member of Your Organization by Joyce Wycoff, Tim D. Richardson, May, 1995
- Dynamics of Second Order Rational Difference Equations:With Open Problems and Conjectures by M. R. S. Kulenovic, Gerasimos Ladas, 30 July, 2001
- Exercises in Intertemporal Open Economy Macroeconomics by Thomas H. Krueger, Jonathan D. Ostry, et all February, 1997
- The Open Way: A Meditation Handbook by Gerald G. May, February, 1978
- Alternatives in Healing: An Open-Minded Approach to Finding the Best Treatment for Your Health Problems by Simon Mills, Steven Finando, October, 1990
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