Wordy arguments can be persuasive as they drift away from the facts in an appealing yet misguided way. Euphemisms like "fringe theories," "extreme views," and even "fake news" can be dangerous. Investigating numerical misinformation, Daniel Levitin shows how mishandled statistics and graphs can give a grossly distorted perspective and lead people to terrible decisions. Levitin grapples with the limits of what we can and cannot know. In the process, he shows defined steps that can be taken to better evaluate news, advertisements, and reports. As such, the readers are enabled to avoid the extremes of passive gullibility and cynical rejection. Weaponized Lies attests that truth matters and so enables the readers to think critically in the post-truth era of willful irrationality, reversing all the great advances humankind has made. The book encourages the readers to call lies what they are and catch those making them in the act.