The book Nuclear War: A Scenario by Annie Jacobsen is good in parts, but be wary of it. There are many facts that are wrong or dubious. For instance, this.

Three of the six nuclear reactors at Fukushima Daiichi sustained severe core damage and released radioactive materials, but they did not melt down.

That is completely incorrect. In fact, all three experienced partial meltdown. It just was not a completely catastrophic meltdown, à la Chernobyl in 1986.

In the Fukushima incident, however, this design failed. Despite the efforts of the operators at the Fukushima Daiichi nuclear power plant to maintain control, the reactor cores in units 1–3 overheated, the nuclear fuel melted and the three containment vessels were breached.

That above is the definition of a meltdown.

I’d recommend this book to anyone who already knows more than is in the book. Which, then, maybe you don’t need to read it. I still enjoyed it because it was such an easy read and refreshed my memory on a few things (at least partially by being woefully incorrect).