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CornerStone Services

Contact Info:

P.O. Box 764087
Dallas, TX 75376
Fax: 972.274.2884

Billy Cox

Billy Cox is an internationally recognized business leader and success coach. Billy is a man who has lived his experiences, not just studied them. He has dedicated his life to helping others achieve their dreams. He is considered by many to be an expert on peak performance and he knows what it takes to win. Billy started in sales and marketing when he was 17 years old. For over a decade he worked his way to the top of every sales and management level, eventually becoming president of the company. Billy and the other company leaders used the powerful Get in the Game concepts and techniques to achieve record-breaking sales.

He is the author of the highly successful book You Gotta Get in the Game and the accompanying workbook titled "The Dream Book". Through his books and speaking, Billy is inspiring audiences everywhere to focus on the key issues that improve performance and create maximum results. His hands-on experience and proven track record make him one of the best success trainers in America today. Billy does a limited number of seminars and workshops for select companies, organizations, and teams around the country. Read more about Billy's speaking under Seminars.

Billy considers his personal accomplishments to be just as important to his professional achievements. He regularly donates his time and talents to youth sports and various charities. Together with his wife, Susan, and their four children, Billy lives in the suburbs of Dallas, Texas.

Get in the Game

Christopher Novak

Christopher Novak started The Summit Team ( as an extension of over 20 years of professional experience in positions that included Director of Human Resources for Cornell Universityıs Campus Life division, Human Resources Manager for Syracuse China Company, a unit of Libbey Inc., and as an officer and military aviator. An experienced human resources executive, his expertise includes training design and facilitation, employee relations, recruitment, coaching, and leadership. His passionate stage presence and genuine rapport, make him a sought after performance coach, skills trainer, and motivational speaker.

He has authored more than 20 articles for magazines that include Newsweek, HR Magazine, Human Resource Professional, Air & Space, Retired Officer and The New York Times Syndicate. Novak has a masterıs degree in business management, specializing in human resources, from the State University of New Yorkıs College of Technology and a dual bachelorıs degree in aeronautics-mathematics from Miami University (Ohio).

Conquering Adversity

Lead Like a Pirate ... Leadership Lessons from the Pirates of St. Croix

David Cottrell

David Cottrell, President and CEO of CornerStone Leadership Institute, is an internationally-known leadership consultant, educator, and speaker. His business experience includes senior management positions with Xerox and FedEx. He also led the successful turn-around of a chapter eleven company before founding CornerStone.

David's 25-plus years of professional experience are reflected in over 20 highly acclaimed books and his reputation as a premier public speaker. David has been a featured expert on public television and has presented his leadership message to over 250,000 managers worldwide.

1975 Graduate of the University of Arkansas

1975-1984 - Xerox Corporation - Positions included sales representative, sales manager and sales planning manager.

1984- 1993 - FedEx Corporation - Positions included District Manager and Regional Manager

1993-1996 - National Spirit Group - Executive Vice President

1996 - Founded CornerStone Leadership

Author or Co-Author of:

  • Birdies, Pars & Bogeys: Leadership Lessons from the Links
  • Leadership ... Biblically Speaking
  • Listen Up, Leader
  • Listen Up, Sales and Customer Service
  • Listen Up, Teacher
  • The Managers Coaching Handbook
  • The Managers Communication Handbook
  • Memos to Managers
  • 136 Effective Presentation Tips
  • 175 Ways to Get More Done in Less Time
  • Monday Morning Leadership
  • Monday Morning Customer Service
  • Leadership Courage
  • Becoming the Obvious Choice
  • Management Insights
  • The Leadership Secrets of Santa Claus
  • Monday Morning Mentoring
  • Monday Morning Choices
  • The Nature of Excellence
  • Leadership Energy
  • 12 Choices ... That Lead to Your Success

Monday Morning Choices

David Cottrell's Collection of Favorite Quotations

Listen Up, Customer Service

Monday Morning Mentoring

Escape from Management Land

The Nature of Excellence Premier Edition Gift Book

The Manager's Conflict Resolution Handbook

Winners Always Quit

Monday Morning Customer Service

Listen Up, Leader!

Becoming the Obvious Choice

The Manager's Coaching Handbook

Monday Morning Leadership

136 Effective Presentation Tips

The Manager's Communication Handbook

Birdies, Pars & Bogeys

The Nature of Excellence (6 x 6) Classic Edition


Tuesday Morning Coaching ... Eight Simple Truths to Boost Your Career and Your Life (Hardcover)

The Magic Question (Hardcover)

Monday Morning Leadership - Autographed

Second Quarter ... Get the Most Out of Life's Toughest Times

The First Two Rules of Leadership: Don't Be Stupid. Don't Be a Jerk. (Hardcover)

David Reed

David Reed attended Texas A & M University where he received degrees in Chemical Engineering and Computer Science. Prior to founding Customer Centered Consulting Group, Inc., he served with Andersen Consulting, Exxon, and Walt Disney World. David’s mission is to help organizations of all types and sizes improve their effectiveness by:
  • Getting the right PEOPLE (Human Resources) doing the
  • right THINGS (Operations) with the
  • right ATTITUDE (Customer Service) with the
  • right TOOLS (Technology) and for the
  • right MONEY (Finances).
David is the author of an easy read customer service book titled Monday Morning Customer Service and conducts customer service training and consulting for a variety of organizations.

David resides in Frisco Texas with his wife and two children and travels throughout the country, helping schools, churches, corporations, and government agencies identify their strengths and weaknesses. Then, by working with leadership teams and teaching simple processes, he helps organizations create and implement common-sense solutions to their problems.

Well-known as a speaker and trainer in corporate America, David also has been a featured guest and expert on programs and panels exploring various customer service issues.

A Culture of Service ... Creating Customer Service that Lasts

Monday Morning Customer Service

Service Where it Counts ... Making a Difference on the Front Line

Dr. Sandy Gluckman

For more than 30 years, Dr. Sandy Gluckman has assisted leaders in aligning their organizations to deliver exceptional performance. Recognized for her ground-breaking techniques in organizational and leadership development and corporate communications, Dr. Gluckman's approach has been described as "life changing" and "a breath of fresh air." Her techniques also have been successfully used by start-ups to multinational corporations in the U.S., England, France, Germany, Australia, and South Africa. Sandy has lectured for the Texas Woman's University Executive MBA program and the University of Dallas Graduate School of Management. She has also been published extensively in business journal, as well as being a popular guest featured in the national media.

Who's in the Driver's Seat?

Ilayne Geller

Ilayne J. Geller, Ph.D., has over 23 years of experience in organizational and management development. She has trained thousands of people on successful conflict resolution within organizations in a variety of industries. Ilayne earned her M. A. and Ph. D. from New York University. She currently resides in Irving, Tx.

The Manager's Conflict Resolution Handbook

Ken Carnes

Ken is an accomplished speaker, author and consultant and a recognized influencer in the fields of leadership, coaching and sales performance. Ken has over twenty years of domestic and international sales, coaching, and executive leadership experience. He has successfully led the sales organizations for two Fortune 500 companies and has held senior executive positions in three top professional services organizations. Ken is currently a Managing Principal with Capital H Group in The Woodlands, Texas and the cofounder of Proseris Services.

Ken’s success has always been built on his lead-by-example philosophy that gains the trust, respect, and commitment to excellence of those around him. Ken has penned several widely read articles and white papers on the topics of coaching, high-performance selling and leadership.  He is the co-author with David Cottrell of the popular book Management Insights.

Escape from Management Land

Lee J. Colan

Lee J. Colan, Ph.D. is a leadership expert, advisor and an energizing speaker. He is passionate about delivering simple, powerful tools that leaders can put to work right away. Colan's cut-through-the-clutter insights appear regularly in a wide range of print and on-line media. Lee has written 13 rapid-read books designed for an information-rich, time-poor world. Busy leaders can finish them quickly and immediately take action.

Colan has also built a track record of successfully managing the challenges of rapid organizational change. Lee possesses an in-depth understanding of business, people and organizations. Lee's training enables him to see through the complexities of today's challenges and communicate simple solutions that leaders can apply in a real world.

Virtually every Fortune 500 company has experienced the positive impact of Lee's practical insights and approach, as have many smaller companies:

Amedisys American Heart Association - National Center AmeriSource Bergen Specialty Group AT&T Wireless Services Crosstex Energy Services CVS/Pharmacy Dollar Tree Stores Fossil Foxworth-Galbraith Lumber Co. International Paper Jiffy Lube Association of Franchisees Jo Ann Stores Johnson Controls KPMG Pegasus Solutions Safety-Kleen Senior Living Properties Pier 1 Imports Texas Instruments The Venetian Resort, Hotel & Casino TRANE Voluntary Hospitals of America (VHA) Yum! Brands

7 Moments ... That Define Excellent Leaders

The Nature of Excellence Premier Edition Gift Book

Engaging Minds and Hearts (Hardcover)

Winners Always Quit

Passionate Performance

Orchestrating Attitude

INSPIRE! Connecting with Students to Make a Difference

Power Exchange

107 Ways to Stick to It

Sticking to It: The Art of Adherence

Getting the BEST from Yourself and Others

Leadership Matters

The Nature of Excellence (6 x 6) Classic Edition

Lorraine Grubbs-West

Lorraine Grubbs-West, president and CEO of Lessons in Loyalty, was a senior executive with Southwest Airlines for 15 years. Her career with Southwest included positions in marketing, employment and leadership development. Prior to Southwest, she was the founder of Aviation Charter International.

Lessons in Loyalty

Maura Schreier-Fleming

Maura Schreier-Fleming has been in sales for more than 20 years. Maura started her company, Best@Selling in 1997. She is a highly-sought speaker at conferences around the world about sales and business. She believes that selling is the best job in the world and she works with clients who want to optimize their selling time using unique skills and strategies that immediately work in real-world selling situations. Maura also teaches selling skills and strategies at Southern Methodist University s Continuing Education Program and the Small Business Development Center and writes several selling columns, including Customer Connections in the Dallas, Austin and Houston business journals. She also writes the column Selling Strategies for the Insurance Record magazine and the Women in Business blog for Maura s articles on business and selling have been published nationally. She was a featured expert on sales at Microsoft s bCentralTM Web site and has appeared on radio shows across the country to discuss sales and business. Maura has a B.S. degree from Cornell University and an M.S. degree from Georgia Tech.

Monday Morning Sales Tips

Stephen Graves

Don't Lead Half-Dressed

Tony Jeary

Tony Jeary, considered by many to be the world’s foremost presentation strategist, has traveled globally for almost two decades teaching others how to present with excellence. Driven from an early age, at 23, Tony became a self-made millionaire by helping others. He demonstrates his value by being extremely disciplined, organized and as a result, a man of action. Tony has published more than three dozen books and resources on the subjects of presentations and strategic effectiveness. In his state-of-the-art studio or at the client’s site, he personally coaches the world's top CEO’s and presidents of companies like Wal-Mart, Ford, New York Life and Texaco and has influenced hundreds of thousands in 36 countries.

Tony consistently provides best practices, benchmarking ideas, and business resources to his clients from over 17,000 personal connections.

There are many words that could be used to describe Tony Jeary: success coach, author, speaker, celebrity, or even a "high-performance resource"; but his incredible track record of consistently exceeding expectations as a speaker, teacher, and author has earned him the title of Mr. Presentation™!

136 Effective Presentation Tips

Topper Long

Topper Long s business life began at the age of 11 when he started mowing neighbors lawns for a few dollars. His formal business career ended 46 years later when he retired as CEO of Textron Engine Marine and Land Systems, a $400 million collection of three companies, two of which he was also President. During those years, he earned a BS degree in Engineering and a MS degree in Executive Management. He served as an officer in the U.S. Army and worked 17 years in government service and 17 years in private industry.

Topper and his wife, Carole, divide their time between homes in Gallatin, Tennessee, and Valle Crucis, North Carolina. They have two daughters, two sons-in-law and four grandchildren, all who have been some of Topper s best mentors. It was during his 47 years of traveling though the jungles of government, corporate America and many other segments of life that Topper, a wide-eyed gullible traveler, learned the lessons in this book. Gullible may be contacted at and is available for presentations, seminars or counsulting regarding his travels in the business jungle.

Gullible's Travels