_Mark M. Tamer has three decades of success in leadership and organizational effectiveness. His broad range of accomplishments includes the development of two dozen programs in human performance improvement, sales and customer service training, communication, and leadership. Mark has a record of impacting the bottom line by identifying valid performance gaps, defining novel solutions, and applying practical management to achieve results.

Prior to establishing MGT Performance Improvement, LLC, Mark held leadership positions at AT&T, United Artists, Advanced Results Company, Pennzoil, and NDC Health Information Services. In addition, he has served as an external senior consultant with Systemation, BlessingWhite, and Wilson Learning.

At NDC, Mark created a client university composed of interactive learning materials distributed through a blend of learning solutions including simulations, e-learning, and instructor-led events. At AT&T, Mark coached a team of project managers, business and systems analysts, and instructional designers to create an array of curricula for general and commercial markets sales and support staff.

While partnering with more than half of the Fortune 500, Mark has delivered 6,000 workshops, executive coaching sessions, seminars, and speaking engagements in all 50 states and 16 countries. He is the author of numerous articles on business communications and management. His books include Virtual Teams: Working Together Apart, and Presentations A to Z: The Handbook for Presenters.

Mark holds a PhD in Organizational Psychology, a Master's in Information and Learning Technology, and a Bachelor's in Secondary Education.  He is a member of the International Society for Performance Improvement, the American Society for Training and Development, and the Project Management Institute.

Mark is a veteran speaker, executive coach, and consultant.  He is currently conducting business symposiums and workshops on management, communication, and leadership. He lives on commercial airliners and at home in Denver.