What’s the most informative book you’ve read recently?
Right at the moment I'm reading a non-fiction called Pay Attention, Say Thank You: Seven Rules & Practices for Joyful Living by M. Gail Woodard which is informative but very small. It really just tells you the rule and how to practice it. It motivates but it doesn't go into why it works.
Actually I found Sacred Hearts to be tremendously informative. It's an historical fiction with a lot of information about convents and medicine in the sixteenth century. I learned a great deal and it was not at all boring.