Badass: A Relentless Onslaught of the Toughest Warlords, Vikings, Samurai, Pirates, Gunfighters, and Military Commanders to Ever Live, also known as Badass: The Book, is a history and biography book. It is the debut book of Ben Thompson, owner of the website Badass of The Week.
The book focuses on historical figures considered to be : having exceptional toughness, aggressiveness, battle skills and/or resilience, and have a significant achievement or impact on history. Thompson has stated in an interview that he intended to convey history in the language of youth, so that they feel like "reading something [they're] not supposed to, but ... actually learning something."
The book has 40 historical figures organized in chronological order through four major time periods: Antiquity, the Middle Ages, the Age of Gunpowder, and the Modern Era. Some of the figures are:
There are also additional features such as a list of "Badass Marines" and a feature on "Awesome Things You Can Shoot Out of a Catapult." The illustrations are done by several artists that have done work for Wizards of the Coast, White Wolf, and DC Comics. Steven Belledin provided cover art for the book.