Book excerpt: The Thinker’s Guide to Fallacies introduces the concept of mental trickery and shows readers how to discern and see through forty-four different types of fallacies. Focusing on how human self-deception and manipulation lie behind fallacies, this guide builds reasoning skills and promotes fairminded, logical thought, discussions, and debate. As part of the Thinker’s Guide Library, this book advances the mission of the Foundation for Critical Thinking to promote fair-minded critical societies through cultivating essential intellectual abilities and virtues across every field of study across world.