Home › Authors › Cynthia A. Barnes 👤 Cynthia A. Barnes 5 books Books by Cynthia A. Barnes A Manager's Guide: The Classic Compedium of over 800 Indispensible Memos 1998 Manager Portfolio Model Memos Manager Portfolio Model Memos 1998 Critical Thinking: Educational Critical Thinking: Educational Imperative 1992 Manager's portfolio of model memos for every occasion 1990 Model Memos for Every Business Occasion 1990