Here's the link where you can preorder it.
If you're looking for some more direct action, Etsy marketplace has waived listing and other fees for Ukrainian sellers. You can buy digital goods from artists who are actually in the cities being bombed and frozen and starved. Here's a link to do that. A a lot of downloadable artwork and greeting cards and you can help for as little as three dollars.
Also, Jose Andres and his World Central Kitchen Charity has boots on the ground (he is made of awesome and has done so much good.) Here's the link to donate to him (and there are corporations who are matching funds.
And while a lot of companies have expressed their dismay and displeasure at what's going on by pulling their businesses out of Russia, you know who hasn't? Coca-Cola, Papa John's. Pizza Hut. McDonalds. Boycott them. (Links to their corporate offices are in the paragraph above.) And here's a terrific article on why you should boycott Coke.