Since 2008 I have run a small book club for a group of friends. We meet every second month over dinner and a glass of wine. It's a great way to stimulate an interesting conversation with a group of friends, and also some discipline to keep us reading regularly.
I often say to people that for the price of a few books and a few hours reading time, we've learned so much it almost feels like cheating!
For anyone interested in doing more reading and wanting to know where to start, I have marked the books that I recommend that everyone read.
(*PMBA = Personal MBA, inspired by https://joshkaufman.net/)