I just finished Humankind: A Hopeful History by Rutger Bregman.
Last year was particularly hard on me due to some personal failures, and this made me adopt an increasingly pessimistic view of the world and people in general. I decided to pick up Humankind since a friend had recommended it previously. It was intriguing because at the time I was convinced that the world could never get better because human nature is hopeless.
This book was a much-needed antidote to my cynicism. Bregman deconstructs the assumptions that people hold about human nature, clearing the way for a much more optimistic outlook, one where people can be trusted to be good. It's such a refreshing take that I wish more people read this. This book significantly changed how I view people and interact with them, and I'm super grateful to have read it when I needed it the most.