When managing people in tech, I think it is equally as important to know how to organize as it is to know how to lead. I would recommend "The Phoenix Project" and "The Unicorn Project" and "The Goal" to all tech managers. No matter how good your communication/leadership skills are, your team will be severely handicapped if they are working in an inefficient/limiting environment. Coming at the same lessons from a diff…
Goldratt's "The Goal" and its sequels are interesting reading, but please, please internalize the principles he was arguing from for the theory of constraints before trying to apply it to software. Otherwise you end up with "The Pheonix Project" (whose author is apparently making a nice living as a snake oil process consultant, according to friends who have dealt with his appearance in companies) which is the "software factory" mess of the 1980's rewarmed and shoved out the door again. Rather, go read Deming's "The New Economy" (just ignore the section on intrinsic/extrinsic motivation).