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One of the definitions of irony, according to dictionary.com, is:

5. an outcome of events contrary to what was, or might have been, expected.
6. the incongruity of this.

According to Wikipedia Lessig is:

… founding board member of Creative Commons and is a board member of the Electronic Frontier Foundation and of the Software Freedom Law Center. He is best known as a proponent of reduced legal restrictions on copyright, trademark and radio frequency spectrum, particularly in technology applications.

Put the two together with a DRM’d version of his book from Amazon which has just gone on sale, and we have a perfect example of the definition quoted above.

 
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