Hug Your Customers: The Proven Way to Personalize Sales and Achieve Astounding Results by Jack Mitchell is a deceptively simple but winning approach to customer service-- that a relationship is at the heart of every transaction. Complete with anecdotes that exemplify outstanding customer service, Hug Your Customers shows how any business can adapt this hugging philosophy to attract great staff, lower marketing costs, and maintain higher gross margins and long-term revenues. A warm people to people concept that has proven effective. Well worth the time to read for anyone in the sales industry.
Little Red Book of Selling: 12.5 Principles of Sales Greatness: How to Make Sales Forever by Jeffrey Gitomer
Jeffrey Gitomer's Little Teal Book of Trust: How to Earn It, Grow It, and Keep It to Become a Trusted Advisor in Sales, Business, & Life
Ziglar on Selling: The Ultimate Handbook for the Complete Sales Professional by Zig Ziglar