Posted on 27 November 2011 by John Cook Update Oct. 14, 2020: The Debunking Handbook is now available in an extensively updated version written by Stephan Lewandowsky, John Cook, Ulrich Ecker and 19 co-authors. Read about this new edition in this blog post: The Debunking Handbook 2020: Downloads and Translations The Debunking Handbook, a guide to debunking misinformation, is now freely available t