When priceless collections face environmental risk, swift, expert action matters. That’s exactly what the Cleveland Public Library (CPL) needed for its 650,000 books exposed to excessive moisture conditions. In late 2025, CPL embarked on a major initiative at its Lakeshore facility to clean and transport part of their collection to a new, more well-equipped facility. As part of this effort, Polygon was brought in to clean the books and prepare them for transportation.