Why are corporate communicators invisible? Author and management guru Bob Prosen wrote a book in which he spent a great deal of time imploring managers to communicate. But he never once mentioned corporate communicators. Why? By Bill SweetlandJan. 28, 2008 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.