In the 1980s, a young adventurer and collector for a government library, Abdel Kader Haidara, journeyed across the Sahara Desert and along the Niger River, tracking down and salvaging tens of thousands of ancient Islamic and secular manuscripts that had fallen into obscurity. The Bad-Ass Librarians of Timbuktu tells the story of how Haidara, a mild-mannered archivist and historian from the legendary city of Timbuktu, later became one of the world's...