The Courage to be Disliked is an odd book.
It uses the literary device of a conversation between two people, which I have used myself and for which I now apologize. I can now see how annoying it can be. The conversation between a philosopher and a young man can at times feel patronizing and is not helped by the ham-fisted characterizations on the audio edition (which was what I was listened to.)
The title is a little misleading, but is really a reference to being comfortable in your own skin and not let what you perceive as the opinions of others dictate your happiness.
The Courage to be Disliked does bring up a number of interesting, and potentially controversial, ideas. The idea of compliments and praise being a form of manipulation, for example, while very interesting is also ripe for abuse.
What the book also does is to introduce the reader to the ideas of Alfred Adler and Alderian psychology. Alder, a contemporary of Freud and Jung, was arguably so far ahead of its time that it is only now that we are really realizing just how important his ideas are.
This is a book about personal development, how we perceive the world and how we feel about how the world perceives us. It has some significant short comings in execution; however, its mission is to bring complex psychological concepts to a wider audience is admirable and it certainly achieves its goals.
The Courage to be Disliked is perhaps hamstrung by the readers preconceptions, given its title and blurb. It does not live up to its press, but that does not mean that there are not valuable lessons to learn from Kishimi, Koga, and Adler.