He received his bachelor's degree at the University of St. Thomas .

He is a specialist in customer service. He is founder and President of the Service Quality Institute(SQI,) a Customer Service Training firm based in Minneapolis, Minnesota, with representation in five continents.

Over the course of the last 38 years, Tschohl has consulted many large organizations, including 3M Medical Specialties, AAFES, Chevon USA, CocaCola Femsa (Mexico,) DHL Express, Dollar Rent-A-Car, Eastman KODAK, Elizabeth Arden, FedEx, Fidelity Investments, Florida Bankers Association, Harvard Business Review (Poland,) Hertz (Europe,) Inc. Magazine, Kroger, MOTOROLA, Oldsmobile, Pennzoil, Pizza Hut of Europe, Sheraton, Sprint, Target, Texaco, Time, Inc, US Cost Guard Training Center, and many others.

He presents seminars in major international cities around the world on the latest customer service strategies and new developments to companies and other organizations.

Here is a partial list of books written by John Tschohl:

• Achieving Excellence Through Customer Service published by Prentice-Hall in 991, cowritten with Steve Franzmeier. In over 200 libraries, according to WorldCat
• Loyal for Life: How to Take Unhappy Customers from Hell to Heaven in 60 Seconds or Less
• Cashing in: Make More Money, Get a Promotion, Love Your Job
• e-Service : Speed, Technology and Price Built Around Service
• Connections: Practice for excellence, path to success
• The Customer Is Boss: A Practical Guide for Getting What You Paid for and More
• Feelings: Quality service, first time, every time