Classics

These books are not read much any more except by those studying in graduate school, but it is not because they have become outdated. What has happened is that these books which were revolutionary at the time they were written have since become accepted wisdom. List of classics

Leadership Theory

This might seem rather dry, but theory provides us with the framework which our learning can then be built upon. List of leadership theory books

Best Practice

Many leaders are not so much interested in having a good theory as much as a good example to build upon. Best practice list

Biographies

There are countless books in this genre, for example those with the name of a great leader prefacing a title "on Leadership" (Lincoln on Leadership, Churchill on Leadership, Patton on Leadership, Martin Luther King, Jr. on Leadership, etc.). List of biographies

Generally Helpful

Stephen Covey's Seven Habits of Highly Effective People was one of the best-selling books of the 1990s and contains a wealth of practical advice for an aspiring leader. List of books that are generally helpful