1. Bruner, Jerome, The Culture of Education, 2nd edition, Harvard University Press, 1997.
2. Donne, John, "Meditation 17: Devotions Upon Emergent Occasions," in Complete Poetry and Selected Prose, ed. Coffin and Donoghue, Modern Library Press, 2001.
3. Engelbart, Douglas C. "Augmenting Human Intellect: A Conceptual Framework," Stanford Research Institute Project 3578, October, 1962.
4. Polya, George, How To Solve It: A New Aspect of Mathematical Method, 2nd edition, Princeton University Press, 1957, rpt. 2004.
5. Rheingold, Howard. Tools for Thought: The History and Future of Mind-Expanding Technology, 2nd rev. edition, The MIT Press, 2000.