For a stronger approach, consider taking a 10 - word excerpt from one of your reviews, then link to your book. (lulu.com)
It works like this: Authors submit their manuscripts, 5,000 - word excerpts of which are posted on the website for a 30 - day scouting period. (slate.com)
One, 2,500 word or less complete article, story or essay or a 1,000 word excerpt of a longer article not to exceed 10 % of the work. (hcps.org)