I'm browsing through Amazon looking for a gift idea for my sister. She is a tester and told me once she would like to pick up automation. I was thinking about helping her to set up a sandbox so she can practice, but I was also thinking about a book I can buy as a Christmas gift. Can you share books about the subject you find worth suggesting?

I was thinking about 'Hands On Selenium WebDriver With Java" (https://www.amazon.com/Hands-Selenium-WebDriver-Java-End/dp/1098110005)