Autographed Copies, &c.

If you would like to purchase a copy of the hardback for $32 (US) or softback for $21 (US), autographed by the author, send payment via Zelle to jimmarshallpolymath@icloud.com, and provide your mailing address.

If you would like a free Septemics postcard or bookmark autographed by the author, send a self-addressed stamped envelope to Jim Marshall, PO Box 1164, Arizona City, AZ 85123.

Supply is limited.