Authors Janet Evanovich and Kathryn Stockett have each sold more than a million Kindle books, joining what Amazon has termed the “Kindle Million Club.”

The authors join the likes of Stieg Larsson, James Patterson, Nora Roberts, Charlaine Harris, Lee Child, Suzanne Collins, Michael Connelly and John Locke, who have also passed the million mark in sales of their eBooks in the Kindle Store. According to the release, Stockett is the first debut novelist to reach this milestone.

Evanovich’s latest novel Smokin’ Seventeen has spent more than 100 days on the Kindle Best Seller list. Stockett’s novel, The Help, has been No. 1 on The New York Times Best Seller list and was just adapted into a film.