Secret Heirs of Billionaires is a 22-book series with 22 released primary works first released in 2015 with contributions by Caitlin Crews, Maya Blake, Amanda Cinelli, Kate Hewitt, Maggie Cox, Sara Craven, Andie Brock, Susan Stephens, Jennie Lucas, Julia James, Carol Marinelli, Jennifer Hayward, Sharon Kendrick, Clare Connelly, Dani Collins, Annie West, and Louise Fuller.