Most books on leadership give principles and science, which don't hurt to know, but leading is a practice -- an active, social, emotional, expressive, performance-based field.

We learn to perform by practicing the basics in any field.

Leadership Step by Step https://www.amazon.com/Leadership-Step-Become-Person-Others/... gives a set of 20 exercises that teach the basics of leading yourself and others. If you practice, you'll develop the skills, experiences, and beliefs of an effective leader. Other books are like music appreciation. This book is like learning to play the piano.

Written by a PhD in physics (me) then started several companies, got an MBA, and teaches leadership at NYU to stellar reviews. http://joshuaspodek.com/reviews-leadership-step-step

Leadership Step by Step: https://www.amazon.com/Leadership-Step-Become-Person-Others/...