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Dennis L. Rosen provides keynotes and training on customer service excellence and sales improvement.

Dennis L. Rosen, Ph.D

The WinFluence® Expert

on Customer Service Excellence and Sales Improvement

For Customer Service & Sales Event Planners

Dennis' Photos 
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Dennis L. Rosen on customer service and sales improvement.
Dennis L. Rosen service & sales training

Dennis' Bio

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Keynotes and training on customer service excellence and sales improvement by Dr. Dennis Rosen.
Dennis L. Rosen keynotes and training on customer service and sales improvement