1 For an example on the topic of how certain skills can be improved during sleep, see J. W. Antony, E. W. Gobel, J. K. O’Hare, P. J. Reber, and K. A. Paller, “Cued Memory Reactivation during Sleep Influences Skill Learning,” Nature Neuroscience, June 26, 2012, doi:10.1038/nn.3152.

2 Illumine, “How to Make a Mind Map®,” 2012, http://www.mind-mapping.co.uk/make-mind-map.htm.

3 B. Kirchner, “Mind-Map Your Way to an Idea: Here Is One Approach to Rooting Out Workable Topics That Move You,” Writer 122.3 (2009): 28–29.

4 J. F. Wilson and C. C. Arnold, Public Speaking as a Liberal Art, 3rd ed. (Boston: Allyn and Bacon, 1974), 70–71.