California's Deadly Women: Murder and Mayhem in the Golden State 1850–1950 by Michael Barry
This book documents and details some of California's deadliest women. Barry takes the reader on the journey of the some of the most notorious killers, and yes, these are women. The book shares details of the lives of women who kill. He writes that "females tend to perpetrate “softer” forms of homicide, such as strangulation, suffocation, and poisoning. They are often more practical in their methods, using just enough violence to get the job done, and they are more driven by the end result, of someone being dead, than the actual act of killing itself." The book is interesting and disturbing.