By Beth Stebner and David Mccormack PUBLISHED: 20:53 EST, 27 March 2013 | UPDATED: 21:11 EST, 27 March 2013 Facebook COO Sheryl Sandberg's new book, Lean In - offering advice for how women can get ahead in the workplace - has received a mixed range of reviews from critics but none as harsh as a tweet sent to one particular negative reviewer. Former head of public relations at Facebook Brandee Barker, who is working on promoting Sandberg’s book, sent the abusive tweet on Wednesday after becoming infuriated at the review that appeared in Dissent magazine written by another ex-Facebooker, Katherine Losse.
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Facebook COO Sheryl Sandberg's new book 'Lean In' and its advice for working women has met with mixed reviews
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Former Zuckerberg speechwriter Katherine Losse has written a highly negative critique of it which also attacked her former boss
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The review prompted the Brandee Barker, a former Facebook PR who is helping to promote the book, to send her the mean tweet
controversial book launched earlier this month, @placeholder, 43, has taken