Keirsey’s book, written in 1998, describes his view of temperaments that is slightly different than MBTI or JCF. He uses descriptive terms for each type including the four primary temperaments – Idealists (NF), Rationals (NT), Guardians (SJ) and Artisans (SP). If you want a place with the best overall description of each of these temperaments, this is the book in which to find it. Each of those is broken down into the subtypes. For example, NTs include the Fieldmarshal (ENTJ), Mastermind (INTJ), Inventor (ENTP) and Architect (ENTP). There are several things in the book that are if not unique, very well described. The author let’s us know what the self-image of each type is based on, which I found to be particularly interesting. Also, there is a chapter on leadership that I thought was excellent. Each type prefers a certain style and it describes how there is an ordering to it. An example is that the ESTP leads first with tactical, then logistics then strategy and then lastly diplomacy. NT’s lead with strategy. SJs lead with logistics. It all makes sense and is a very helpful way of understanding how each type tackles leadership. There is a chapter on “Mating” which describes how each type approaches courtship and a chapter on Parenting. Both were quite interesting.
It’s all good and if you are interested in type, this is pretty fundamental/basic reading. My criticism of the book is that it feels like some of the content is invented. I didn’t have complete confidence in some of the material and I don’t fully trust the profile descriptions in particular as well as those in some other books. Still, I do recommend Please Understand Me II.