Do you have great examples of promo materials that you (or someone else) have created? (99u.adobe.com)
Always one to be proactive in promo materials, when I opened my own company 20 years ago — I was told: you want to name your company — WHAT? (remonline.com)
You can also include any other promo material you might have that could lead them to your author website or to purchase other books. (magnoliamedianetwork.com)