$8 USD gets you a DRM-free copy of the ebook plus high-res images of maps
$26 USD gets you a signed trade paperback plus DRM-free ebook and map images. (US shipping included, add $15 for shipping to Canada, $20 for the rest of the world).
You can use Paypal or (if you live in the US) send me a check. Email me at courtney (at) courtneyschafer (dot) com to let me know which you prefer, and I'll send you back my Paypal account name or mailing address. Once I get the money, I'll add you to my backer spreadsheets, and you'll receive your book(s) at the same time as regular Kickstarter backers.
Alternatively, you can wait for me to do a general release of the book through online retailers. That'll happen after I send out all the Kickstarter rewards - so likely this winter. I'll announce the general release here and to my mailing list (email me at courtney (at) courtneyschafer (dot) com to join).