This is also an optional Dealing With Difficult People Workbook to accompany and complement the original MP3 audio recordings, available at Sherwood Publishing: https://www.sherwoodpublishing.com/self-development-books.html#dealdiffw
This workbook provides an overview of the ideas and concepts covered in the audio recordings, together with a number of activities you can do, including some questionnaires so you can score yourself.
You can find free article and downloads on Julie Hay's website: https://juliehay.org/
This book and other Sherwood Publishing titles can be found at: https://www.sherwoodpublishing.com/