…This report presents seven “deception dossiers” - collections containing some 85 internal company and trade association documents that have either been leaked to the public, come to light through lawsuits, or been disclosed through Freedom of Information Act (FOIA) requests. While many of these documents have been analyzed by others…these dossiers offer the most complete and up-to-date collection yet available. Each collection of internal documents reviewed here reveals a separate glimpse of a coordinated campaign underwritten by the world’s major fossil fuel companies and their allies to spread climate misinformation and block climate action. The campaign began decades ago and continues today… The…case studies show that…Fossil fuel companies have intentionally spread climate disinformation for decades… Fossil fuel company leaders knew that their products were harmful to people and the planet but still chose to actively deceive the public and deny this harm…[and that the] campaign of deception continues today…