I’ve read a couple of management books. However, the books that have had a greater impact on me, as a manager, happen to be … parenting books.
Don’t get me wrong: I don’t advocate for managing people as if they were kids. But coincidentally or not, there’s a big overlap between dealing effectively with kids and dealing effectively with adults (especially in the workplace): showing empathy, active listening, develop autonomy, avoid being judgemental, how to praise and how to provide negative feedback, … the list goes on.
I can highly recommend How to Talk So Kids Will Listen & Listen So Kids Will Talk and The Whole-Brain Child.
Strictly speaking about more traditional management books, I seem to enjoy negotiation and communication books like Getting to Yes and Difficult Conversations. Also, coincidentally or not, you learn a lot about how to deal with kids in those books. In a hurry, Re:work Guides from Google is also a very good resource (for e-reader users: an epub/pdf can be downloaded here).