Buy Printed Curriculum
You can purchase the printed curriculum books from the publisher for $134.85 +s/h here: Zombie-Based Geography
This is the easiest way for your school or district to purchase the curriculum if you are using a purchase order.
The complete curriculum is split into three books. Each book includes a CD with a PDF of the curriculum and a digital version of Dead Reckon.
Dead Reckon in paperback
You can purchase printed copies of Dead Reckon from Amazon for $13 here: http://amzn.com/1494930188
This is issue #1 and is currently the only issue available.
You can also purchase a membership for this site and have instant access to download the curriculum, Dead Reckon, and extra resources (such as PowerPoints).
Lifetime membership for ZombieBased.com is $120 ($10 per month for 10 months) or $100 (one time payment).