That's the English translation done by Sandra Smith. It's unfinished because Némirovsky was among the victims of the Holocaust. She died in Auschwitz in August 1942. The book is a collection of the first two volumes that she did finish plus her notes for the subsequent three volumes.
What's complete is a very sweetly written, very intimate account of a war story that touches the lives of people from all walks of life. It's an intriguing story that's less about the events of the war. The war is really just the context for the people, what they're doing, thinking and feeling.
It's done in the style of a 5 movement symphony and I think what amazes me is how incredibly like a symphony it actually was — I could actually feel the overture and the second movement in writing as opposed to music. I've never seen that before.