I bought the book and must say it is the best book written IMO on this camera. I have it on my ipad and may purchase the hard copy. I do have one question. When I first started reading I "thought" I read that toward the end of the book I would see a discount code for nikonians membership. I can't find it now and am wondering if I imagined it? Without giving out a code would it be possible to refer me to the ebook page number? TIA.