I have to say that I ran a spotlight ad at the beginning of the month for my Catrina Flaherty series. I had the best response for anything I’ve done except BookBub. I got a positive ROI, which, in my experience, is unusual.
INTRODUCE YOU & YOUR BOOKS/SERIES TO READERS WITH AN EXCLUSIVE DEDICATED MAILING.
The most powerful weapon in the AXP arsenal - can generate hundreds of sales/downloads. Each mailing custom-designed for you, featuring all your books/audio, short bio and any special promotions you'd like to include. Any featured FREE books you use can be used as lead magnets. See an Example Mailing(this is just one example, it can look like just about anything!)
SPOTLIGHT your whole series - A mailing to 50k+ readers of your genre featuring your entire series
SPOTLIGHT one or two books - Maybe one FREE, one 99c? One free/discounted and one NEW RELEASE? It's up to you-Create your own custom promotion!