Let us know which of your books you want featured in the smart ad. Either with an Amazon link or a similar book retailer.
I recommend around 125 words and 2 to 3 paragraphs.
Let us know up to 10 authors whose readers will be a match for your book. We use this to place your smart ad in different places on Shepherd.
Publishers choose some weird things, so let me know what you think your book should have for genres.