I don't know what took me so long, but I am finally a BookShop.org affiliate at https://bookshop.org/shop/WDCgardener. That way, we can share links to books we review or feature in our magazine with the BookShop code as well as the Amazon affiliate one. You can click on and order from either source. We might get a tiny percentage of that sale for the referral and it will cost you nothing additional.
As a first BookShop pre-order, might I suggest my upcoming book with Teri Speight -