There are a lot of books that describe the various personality types but most don't offer a unique twist on the subject "Was That Really Me" is a fascinating book. It includes detailed information on how the inferior function manifests in each of the 16 MBTI types. It describes how at times we fall "into the grip" of our inferior function. During these episodes, we become a different person than we typically are - specifically a bad version of our opposite. For example, the logical, efficient and focused ESTJ loses their ability to think logically, is prone to outbursts of emotion, feels unappreciated and become overly sensitive to criticism to others. The INTJ loses sight of the big picture, becomes overly focused on specific details and attempt to control everything around them. Looking at it a different way, the INFP when in the grip, turns into an extremely poor or dis-functional version of the ESTJ. This is all somewhat associated with Jung's concept of the shadow. There is gold in the shadow though. Engaging in these episodes helps us to break out of the way we typically think and supports our personal growth towards a greater balanced use of the cogintive functions.
I learned a lot reading this book and give it 5 out of 5 stars.