Katherine, by Anya Seton
“This work of historical fiction tells the 14th-century love story of Katherine Swynford and John of Gaunt, ancestors of many in the British royal family. It showed me that two people can change the course of the future, and it was the start of my lifelong love affair with the past.”
Recommended by Kristin Hannah, the author of 21 novels, including Fly Away ($28, amazon.com).
To buy: $16, amazon.com.