I think I can sum up the lessons of this book with a Saturday Morning Breakfast Cereal cartoon.
For the first half or so, I thought I had a handle on it. I've read Wild Swans: Three Daughters of China, which details what the Chinese suffered through under Mao and the Cultural Revolution; since the Khmer Rouge borrowed a lot of ideas from Mao, this was a story I was familiar with.
Then it got bad.
When you've just read 200 pages of people being harnessed like oxen to ploughs and whipped on until they drop dead of starvation, and then
the author feels the need to tell you that what's about to happen to him is so bad you may want to just skip this chapter altogether...no matter what you imagine might be coming, it's worse than that.
There are three segments Ngor warns about.
This book is fucking rough.