For a short novella I felt I learned about the subject of women serial killers that I didn't know about before.
I know it sounds silly but I don't remember ever reading about female killers before until these past 10 years.
Each set of women killed in their own way and of course was found out. Even back then they couldn't hide what they did no matter how much they tried.
We get a bit of detail on how each women took the lives of those around them, though we are not bored with full details. It is more sweet and to the point.
If you are looking for just true crime light reading then this maybe the book for you.