I could smell the acrid soot a block away. The library at the University of Mosul, among the finest in the Middle East, once had a million books, historic maps, and old manuscripts. Some dated back centuries, even a millennium, Mohammed Jasim, the library’s director, told me. Among its prize acquisitions was a Quran from the ninth century, although the library also housed thousands of twenty-first-century volumes on science, philosophy, law, world history, literature, and the arts. Six hundred thousand books were in Arabic; many of the rest were in English. During the thirty-two months that the Islamic State ruled the city, the university campus, on tree-lined grounds near the Tigris River, was gradually closed down and then torched. Quite intentionally, the library was hardest hit. ISIS sought to kill the ideas within its walls—or at least the access to them.

On a rainy day this spring, I walked the muddy and eerily deserted university grounds, in eastern Mosul. I turned a corner and saw the library, a block-long building, charred black and its shell strewn, inside and out, with splintered glass, burnt beams, heat-warped furniture, toppled shelves, and mounds of ashes. In December, as the Iraqi Army pushed into Mosul, ISIS fighters had set the library alight. The books had served as kindling.

“My life’s work,” Jasim said, when we spoke by telephone two weeks ago. “I’d rather my house be destroyed, not the library. All my memories, all the people we helped there—we helped develop the city and the country. Whenever I speak about the library, it’s as if I’m putting my hand on an open wound.”