My top 3 picks of 2019 were Leader Shift by John Maxwell (#18 below), Lifeonaire by Steve Cook (#19 below) and Growth Mindset (a re-read for me) by Carol Dweck (#7 below).
Leader Shift is extremely practical, has decades of experience packed into it and gives you some great tools to improve your leadership skills.
Lifeonaire challenges the idea that we always need "more". More money, more things, etc. The goal isn't necessarily to make millions but to live a life where you earn money but spend it on things you really care about and also make sure you're living life (building experiences, spending time with family and friends and not just rushing to keep up with everything).
Growth Mindset takes a deep dive into how you can choose to approach learning skills. You can always improve and get better at something with the right mindset. Don't get stuck into thinking "I can't", or "I'm not good at that."