This is the first time I've sought out a first-person account of OCD since my own diagnosis, and there were so many moments in Adam's life that were painfully relatable. I enjoyed the first half, in particular, as it outlined how OCD is diagnosed and how it differs from other mental illnesses. Adam's narrative felt strongest to me when it was at its most personal - I found myself skimming when we strayed into historical context and general observation in the second half. This book has aged in the ten years since publication and missteps in a few areas that would have been more noticeable in today's publishing environment (mentions of autism are now out-of-date and will be particularly frustrating for those who have a greater understanding of - and respect for - neurodivergence, and a chapter that dramatically describes obsessive practices among indigenous people around the world was downright cringey). Ultimately, I won't actively recommend this book.