It’s a brilliant book my friend. I just finished reading it earlier this month. I advise anyone on this journey to read that book. It clarifies why it’s so difficult to break free from an addiction to pornography by explaining the science behind how our brains work and how we become addicted to behaviours. It also highlights many different symptoms people have experienced unawares as a result of their addiction, and provides reassurance that these symptoms will go away after months of abstaining. Moreover, it includes strategies and methods which other people have successfully used to quit pornography for good.
I posted a summary here on the forum if you’re interested.