1. Agree with your comments. The text was never intended for a general audience. 2. The "book" is actually my class notes from the Customer Development class I teach at Haas. 3. Students started asking for hard copies of the notes. I sat on the board of Cafepress so as a favor, I bundled the notes together, slapped a cover on it and put it on the cafepress.com site 4. When Eric Ries took my class he pointed out that I could ship the copies to Amazon and that would give others broader access to it. Amazon wanted something more than "these are my class notes" as a description. 5. You can think of the book as a $39 ripoff for class notes, or a steep discount on the $30,000 Haas Business School tuition. 6. The book title was a pun on my last company, Epiphany 7. The web site is a running commentary on the origin of customer development, how the ideas evolved and what they mean