I've pulled together some of my favorite resources. Hope you will find them useful!
How to Win Friends and Influence People; Dale Carnegie
The Art of Woo; Mario Moussa and G. Richard Schell
Getting Past No; William Ury
Nudge; Richard Thayler
Negotiation Genius; Deepak Malhotra and Max Bazerman
The Mind and Heart of the Negotiator; Leigh Thompson
Made to Stick; Chip and Dan Heath
The Charisma Myth: How Anyone Can Master the Art and Science of Personal Magnetism; Olivia Fox Cabane
My Artist recommendation: The picture is a custom art piece from Studio DVW. Her current series is the Art of Conservation where she depicts wildlife on the brink of extinction.
The best sunglasses for watching water sports: Method Seven Optics.