Recently, Educated by Tara Westover, and in the past The Glass Castle by Jeanette Walls, both have taught me to approach individuals with the true ignorance of their lives that I have. You don't know where people come from and what life led them to where they are when you meet them. Try not to make assumptions. Additionally, I have to remind myself that I grew up loved, cared for, and privileged compared to so many other people.. the fact that I could read their story and post here is a testament to that, helps me try to stay down to Earth and that I had some advantages growing up that others did not.
Why We Sleep by Matthew Walker... I used to be a chronic advocate for sleeping less until I read this and did my own scrappy post-research. I'm much more conscious of my health and my sleep now.
I could go on and on..