This is a very interesting book, it gives wide insight about INFJ's basics, relationships with him/herself, parenting, work, etc. I found it useful because even though I fit into all INFJ's characteristics it helped me understand why I might sometimes think that I can be from another personality type. Also, I am a known "door slammer" and I have been doing this all my life without knowing it was a way to coup over disappointment, a way to say "enough" and move on. It also helped me to valor my relationship and understand some situations that I thought were unresolvable problems and are more common than I expected. A very positive experience and very useful for every INFJ as well as for people wanting to understand INFJ behavior.
This was very helpful! I particularly appreciated the practical advice around creativity and stress relief, and also the succinct explanations of widely referenced concepts like “The INFJ Door Slam” and “Ni-Ti Looping.” Some concepts may be familiar to INFJs, as I found that I already do a lot of what was suggested. That said, there is tremendous value in not feeling alone for our needs, as well as in being offered so much support to live more harmoniously.
Several points reading this it felt like this was describing me exactly. The sections on how each different personality type gets on with INFJ went on a bit over long on first read, but might be more useful as a reference.