It's set in the 1920s and '30s in the US dustbowl and is a sort of family saga. It is an awesome book.
It was a book club choice, and I wasn't thrilled, because a) I've read something before by her and didn't like it much (something about women pilots in Afghanistan), and b) I'm not interested in American novels as a rule.
But I found it un-putdownable. The writing is very skilful. Its style is spare - no word is wasted. It touches on man-made climate change, migrants (unwanted in the place they migrate to), the workers' rights movement, and above all, family relationships. It made me re-think my relationship with my mother and made me cry (twice!). It sounds like a misery-fest but it isn't totally - lots of unexpected twists and is ultimately uplifting, and I learnt loads. I'm glad I got it in hardback (from the library) because it is long!