Make a Facebook page for your individual book in addition to/rather than your author page. This will make it rank up in Google searches.
Please don't debate me. Just a tip to use if you want it.
I subscribed to FaceBook in 2010, and have always promoted my Lulu books there. It seems to work to a certain extent. Fairly satisfactory for something free.
Do you mean an advertising page per book?
Yes, per book. Separate from you completely, as in, don't even put your face there or anything about you. Just the book. Book description, reviews, quotes, cover. That's all. And, a Shop Now button (Facebook offers this) that links to Amazon.
Make your website the book Amazon page in the slot where they ask for a website. The book cover can also be the Amazon page.