As a library, its details are impressive: The building has four floors, 240,000 square feet of internal space, a podcast and YouTube production studio, a performance hall, a grand reading room, a children’s library, a digital commons, heated handrails, an interior blending hyper-modern touches with traditional wood at almost every turn and $500,000 in indigenous placemaking work, mostly in the form of artworks. It also has 450,000 books.