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data-action-source="collection_writer_card" data-action-value="9999dd095c18" data-action-type="hover" data-user-id="9999dd095c18" dir="auto">Emily Glassberg Sands</a><div class="infoCard-bio u-fontSize14 u-textColorNormal">Head of Data Science <a href="http://twitter.com/Coursera" target="_blank" title="Twitter profile for @Coursera">@Coursera</a>, Harvard Econ PhD</div></div></div><div class="infoCard-actions u-floatRight u-xs-floatLeft"><span class="followState js-followState" data-user-id="9999dd095c18"><button class="button button--small u-noUserSelect button--withChrome u-baseColor--buttonNormal button--withHover button--unblock js-unblockButton" data-action="sign-up-prompt" data-sign-in-action="toggle-block-user" data-requires-token="true" data-redirect="https://medium.com/coursera-engineering/about" data-action-source="collection_writer_card"><span class="button-label button-defaultState">Blocked</span><span class="button-label button-hoverState">Unblock</span></button><button 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data-action-value="12a7eff71fbc" data-action-type="hover" data-user-id="12a7eff71fbc" dir="auto"><img src="https://cdn-images-1.medium.com/fit/c/120/120/1*HMuoPeXRSb5DeiHT0fYSPw.jpeg" class="avatar-image avatar-image--small" alt="Go to the profile of Dan Saber"></a></div><div class="infoCard-info"><div class="infoCard-wrapper"><a class="link link--primary link--accent u-accentColor--textNormal u-accentColor--hoverTextNormal" href="https://medium.com/@Saber_Metrics?source=collection_writer_card" data-action="show-user-card" data-action-source="collection_writer_card" data-action-value="12a7eff71fbc" data-action-type="hover" data-user-id="12a7eff71fbc" dir="auto">Dan Saber</a><div class="infoCard-bio u-fontSize14 u-textColorNormal">Artless brand-building</div></div></div><div class="infoCard-actions u-floatRight u-xs-floatLeft"><span class="followState js-followState" data-user-id="12a7eff71fbc"><button class="button button--small u-noUserSelect button--withChrome 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