Any recommended reading material about/by Saint Thérèse of Lisieux?

Yesterday at Mass I felt a special connection asking for her prayers, and I felt compelled today to mention her to my protestant sister, for some reason I thought maybe she'd find her interesting. Perhaps it would prompt her curiosity about the Church?

If there's any good biographical reading out there, and/or anything that explains the "little way" I would be interested to check it out.

Thanks!

Thanks for the rec's everyone!