A coffee table book must have physical presence. It should be too big for a standard bookshelf. Ideally, it requires two hands to lift. The weight is intentional; it anchors a room. When you set down a 10-pound monograph on Brutalist architecture, you are making a claim: Something important rests here.
Place a book on African Art next to one on Bauhaus Architecture next to a whimsical Guide to Mushrooms . The contrast creates intellectual sparks. You are not organizing a library; you are composing a poem.
Treat your coffee table books like a wardrobe. In spring: floral photography, Japanese aesthetics, travel guides to Provence. In winter: alpine lodges, whiskey, black-and-white noir cinema.