I'd recommend Julie Zhuo's The Making of a Manager. She's got a twitter https://twitter.com/joulee where you could check out her sharing of managerial wisdom to have your own gauge.
This book focuses on the practical side like sharing useful feedback, smart recruiting strategy and meeting optimization, all towards the goal of greater outcome and amplifying team success, instead of just more activities entailed by conventional manager model.
This book focuses on the practical side like sharing useful feedback, smart recruiting strategy and meeting optimization, all towards the goal of greater outcome and amplifying team success, instead of just more activities entailed by conventional manager model.