I read this book at a time when I was dealing with some very difficult people in my life. It helped me to see ways that I could change my own way of dealing with difficult people in constructive ways.
In particular, the thing that stuck most with me was the importance of taking responsibility for my own actions, and holding others accountable in appropriate ways.
And yes, his book helped A LOT in dealing with difficult people.
I have since read another one of Glasser's books and plan to read as many as I can. HIS BOOK IS A CLASSIC.
You won't be disappointed.
Glasser's Reality Therapy is one of the recognized modern approaches to psychotherapy. This was his seminal work on the subject with practical cases from his experience in an institution with troubled teenage girls. The development of his thinking in this book is a good introduction to his later books on the subject. Easy to read, very practical in outlook and a relief from the obscure Freudian approaches. not to take anything away from the breakthrough that Freud brought to the entire subject of mental state.