You can order Defenestration Day through Bookshop.
You can also request any indie bookstore to special order it and pick it up at your convenience. This is a great way to support both a writer and a bookstore and ensure that the literary ecosystem continues to thrive. If you live in Chicago, the Chicago Review of Books has a fantastic list of indie bookstores - find the one closest to you here.
You may be tempted to buy this book from a major online retailer that promises free shipping and quick delivery. Please do not buy my book from this website. You know the one.