I'd would highly recommend this book to anyone dealing with unwanted intrusive thoughts. I have had mental issues before over the last 4 decades and haven't faced up to them as I've tried to use an old mindset to deal with them but never really worked. 6 months ago I decided to do something about understanding this mental state. I started to see a psychologist who has been extremely helpful, however I needed to have a road map in my head to join up the dots which this book has been able to help achieve that. I'm extremely grateful to the authors Dr Martin Seif and Dr Sally Winston. Hopefully follow up book sometime down the track.