A reviewer of Ryan’s The Daily Stoic compared his emails to AC/DC – always nearly identical but good to get nonetheless. The Obstacle is the Way has the same vibe to it. Short chapters (4-5 pages), each with a theme, but you could mix and match the message with any other chapter and it wouldn’t feel out of place. A good read, but definitely got very samey towards the end.
See review on Goodreads.