If you're hunting for a solid balance between convenience and putting money where it matters, I usually point people toward Bookshop.org first. It lists new copies like the big retailers but funnels revenue to independent bookstores, which feels good when you're buying something like 'Fight'—especially if there are boutique or signed editions you want to preserve by supporting local shops. Bookshop also recently expanded into e-books, so you can sometimes get a digital copy there too if you prefer that format. That said, I still use a mix of sites depending on what I’m hunting for: Barnes & Noble is great for checking Nook/eBook availability and easy in-store pickup if a physical copy is what you want, and Amazon/Kindle often has the widest stock and fastest shipping for both new and used copies. For rare or out-of-print editions I’ll hop over to AbeBooks or Alibris to hunt through seller listings. Each place has trade-offs—support, speed, price—so I usually compare ISBNs and editions before I click, and then pick the option that feels best for the edition I want.