These Amazon book reviews from June 1995 were posted prior to the official first Amazon book sale (July 1995): <a href="https://www.google.com/search?q=site:amazon.com+%22By+A+Customer+on+June+*,+1995%22">https://www.google.com/search?q=site:amazon.com+%22By+A+Customer+on+June+*,+1995%22</a>