The makers of the hugely popular (at least in our household) Good Night Stories for Rebel Girls series are branching out into chapter books. Their first two are available now: Ada Lovelace Cracks the Code and Madam C.J. Walker Builds a Business. Lovelace is, of course, the pioneering computer programmer while Walker a cosmetics industry pioneer and America’s first female self-made millionaire.

You can also listen to the Rebel Girls podcast episodes featuring Lovelace and Walker.