At the moment you can pur­chase Exper­i­ment in Ter­ror T-shirts & hood­ies (guys and gals) and stick­ers from the offi­cial Red Bub­ble shop:

I will also have addi­tional merch such as posters, cof­fee mugs, pins and Kin­dle cov­ers com­ing in the near future.

Also, there will be an oppor­tu­nity at some point this year to pur­chase per­son­ally auto­graphed books through this web­site, and an EIT beau­ti­fully designed box set of the first four books. Stay tuned!