I can't pick just one, here's my top 5 in no particular order.
The Intelligent Investor - Benjamin Graham
In The Name of Rome - Adrian Goldsworthy (better than The Art of War by Sun Tzu)
Collapse - Jared Diamond
The Arms of Krupp - William Manchester
The Dragons of Eden - Carl Sagan
The Animal Farm- which showed me that I wasn't nuts, that the reality I was seeing was actually THE reality. It's of course why George got himself banned in the Workers Paradise.
The Rational Male, by Rollo Tomassi
The Myth of Male Power, by Warren Farrell
The Republic, by Plato - admittedly I did not read he entire book, but I received an A+ for the entire course.
Many others which I will ponder, and I will get back to you.
I read the whole book, but not sure you need to ...well, maybe you need to read it all, to get and make the commitment.
Great mental health through proper breathing and pelvic thrusts leading to orgasm ...hard orgasms ...in intercourse.
Pity the current edition does not have the same drawings and figures by Riech.
PS - For those into porn, CIM, COF, COB, or jerking, you might not bother with this book. You could get a paper cut turning the pages !!!
Since my read and study of this book, long ago, I have always been committed to CIV. Although I must admit that damn, 'The Ashley Experience' has overpowered my true desire on ocassion, but just from time to time.
I know I know, he’s become a bit of an eccentric kook over the past handful of years but his earlier work really broke down the recipe for success which I’ve followed and have had great success with my side hustle.
Basically it’s 50% talent and 50% timing. The biggest take away is that when your timing is right, you better be ready to pounce. No half measures or the guy behind you will take your opportunity.