Our selections from The 100 Best Business Books of All Time were: -Selling The Invisible by Harry Beckwith (great look at selling services) -Secrets of Closing The Sale by Zig Ziglar (gets you prepared for objections) -How to Become A Rainmaker by Jeffrey Fox (shortcuts to better sales techniques) -The Little Red Book of Selling by Jeffrey Gitomer (best first book for first time salespeople) As mentioned in other posts, I would also add SPIN Selling, Mastering the Complex Sale and The Referral Engine. "Smart" books in the sales space include Influence, Made To Stick, To Sell Is Human. For motivation, read more Zig, Tony Robbins, and Dale Carnegie.
Also recommended in this reply