Donald Robertson is a psychotherapist who specializes in the treatment of anxiety with Cognitive-Behavioral Therapy (CBT), which has its roots in Stoicism. As Robertson notes: "CBT also happens to have the strongest evidence base, the strongest scientific support, of any modern form of psychological therapy." This book was highly recommended by the Stoic community on reddit, which is how I found it. It has great reviews, and as one reader wrote, "In my opinion, Robertson is superior to Pierre
Hadot, Long, or any other writer on Stoicism because of his psychotherapy background and his ability to reach the common man."