When the axiom that “nothing is guaranteed” rings truer now than ever—and to millennials and Gen Z alike—it’s no surprise that stoicism is taking hold as a modern mindset. Look no further than the millions of listeners to podcasts like Ryan Holiday’s The Daily Stoic and disciples of Mark Manson’s stoic-adjacent The Subtle Art of Not Giving a F*ck. 100 Days to a Stoic Mind is a daily devotional with the writings of the greatest Stoic thinkers, along with tidbits of historical context, all wrapped up in a promise of self-improvement through study of this ancient philosophy. This compendium of Stoic meditations helps readers acknowledge logic and reason in their own lives, prepare for or even embrace negative outcomes, and understand that wisdom and peace are in the journey. Each meditation features useful tools and questions to ponder that help modern stoics to look inward, gain resilience, and follow the Stoic path.