I am a huge fan of Stoicism.

I was first introduced to it in college when I took a two semester course on the history of Rome and learned about Emperor Marcus Aurellius . A fascination with him led me to dig deep into other stoics and that has continued. I have read all the classics as well as many of the modern commentaries on them. Some are excellent, and others are not as useful or easy to read. Perhaps the best one I have found is this one:

The Daily Stoic is a daily short read that gives you actionable tips on how to better your life. My close friend William April gave me a copy a couple of years ago as a Christmas present, and I have since bought the kindle version, as well as copies for important people in my life. Do yourself a favor and snag a copy for yourself.