Twitter also lets you precisely target your audience, but with an audience that is about 1/5 of Facebook in terms of MAUs (Monthly Active Users), there simply aren't enough users to serve ads to. It took almost a month to go through my $75 ad budget on Twitter and it resulted in zero sales.
Verdict: Not worth it.
Baker & Taylor and Ingram are two of the largest book distributors in the world and are challenging for independent photo book publishers to get distributed by them. It's vital to be carried by a larger distributor as it will make it easier for independent bookstores to carry your book. Having to do paperwork/payment for someone selling a single book is not cost-effective and will make it difficult for any bookstore to want to carry your book. By having your book with one of these distributors, they can buy it right alongside the new Dan Brown novel.
These folks will do it for you: http://www.bookch.com/
Verdict: As of today, 10/28/16, 21 books sold.
For a flat fee of $1500, Amazon will distribute and review as many of your books as you’d like. This was the most expensive single promotion I did for the book and I have very mixed feelings about it. On one hand, having more reviews is good and some of the Vine reviews were some of the most insightful and interesting of any that were left. Still, I'm sure I'm not the only one who tends to gloss over reviews marked as "Vine Customer Review of Free Product". See the Amazon reviews for my book here.
Cost: $1500 (!)
Verdict: Received mostly positive reviews, but I’m undecided as to whether these “bought” reviews carry much weight.
Selling through Amazon
I knew early on that I wanted to sell the book through Amazon to reach the widest possible audience. I also knew I wanted Amazon to handle fulfillment, which would allow the books to be listed as Amazon Prime, which removes a lot of the friction of buying online. The flip side is the percentage Amazon takes out. For a $65 book, I make $29.25 per copy (minus my costs for actually printing the book and shipping it to the Amazon warehouse).
Cost: 55% purchase discount by Amazon, plus a $99 annual fee, plus shipping book to Amazon (breaks down to about $2/book), pricing outlined here.
Verdict: 35 books sold to date, a minor success at best
There is no shortage of "author services" out there that are happy to take your money to ostensibly promote or review your book and feature it on their web site. The vast majority of these services seem like a waste of money at best and, sometimes, an outright scam.
Kirkus is the largest of the book review services and their reviews are automatically picked up by Amazon, Barnes & Noble and others on the book's listing page, so these reviews tend to carry a bit more weight.
For an indie book publisher, you need to submit the book through "Kirkus Indie", which overwhelmingly caters to ebook writers or print-on-demand books. I wasn't sure that my book was a good fit, but decided to give it a try anyway. After paying the fee and submitting the book, I received the review about six weeks later.
The following month, I received notice that my book was selected as a Featured Review, of which less than 10% of books submitted are chosen. This meant the review would be included in the print publication sent to librarians, publishers, etc.
Verdict: TBD - no measurable sales from this and I'm undecided as to whether this resulted in actual sales.