Jeffrey Gitomer is an American author, professional speaker and business trainer, who writes and lectures internationally on sales, customer loyalty and personal development.
I got an (unsolicited) email offering a webinar to teach me about how to measure, and the importance of measuring, the ROI (return on investment) of social media.
I'm celebrating my 20th year of writing about sales, networking, loyalty, trust, attitude, leadership, business social media, and personal development.