My favorite Leadership Book is the Bible
by peter
(eaton, OH)
It's a really long book but there is tons of information in it.
Some folks don't like the bible because it demands personal responsibility and makes you take account for what you do. Seems people these days are not interested in doing either of those things.
Other religions don't stack up because they are fluffy or involve killing those who don't agree with you.
Jesus words and God's word are the best. And he teaches us to be at peace with one another and love one another. That's my take.
Sorry if it's a bit simplistic...
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Many leadership books give credit to the Bible. I have a copy of a Leadership Bible from John Maxwell, that will explain after part of the Bible what it is saying about leadership. Here it is at Amazon if anyone wants to check it out
Leadership Bible by John Maxwell