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Mary Ann O'Brien
Books by Mary Ann O'Brien
Ask & Deliver
Discover the Heart of Your Business by Listening to the Voice of Your Customers
Mary Ann O’Brien, Founder and CEO of award-winning marketing firm OBI, and the brains behind the revolutionary O’Brien Voice of Customer (O.VoC) survey, has been called “The Mother of Modern Marketing.” Now she’s sharing her unique, highly-successful approach to helping clients attract and retain...
