I'm sorry to say that I'd never read any book by Doris Lessing before she won the Nobel Prize. This one and a few others came recommended.
It may not have been the best book to read when I'm expecting a baby soon, nor when I know families in very similar situations (down to the same name of the troublesome child). I do think things are better now for children and families like this, even though there are still no easy solutions.
Maybe I'll read it again when I'm done having children if they all turn out okay.