The Mind of a Leader by Rasmus Hougaard and Jacqueline Carter.
A new book by Harvard Business Press which dissects the modern leadership crisis (88% of employees say their leader's don't lead well) and conveys a timely new message that leaders must be mindful, selfless and compassionate in order to be effective.
Humble Inquiry by Edgar H. Schein
A simple and clear book on communication and relationship-building through inquiry. Full of wisdom.
High Output Management by Andrew S. Grove.
This classic book on managing has become a cult classic within startup and tech circles. The book takes on the day-to-day stuff of management—meetings, performance appraisals, interviews, compensation—and deconstructs the process and goals of being a manager.