ProkaryPosters: In pursuit of its aims and conveying their message, microgeographers should not shy away from controversy and risk taking.  ProkaryPosters are a novel way of conveying microgeography's message. The print on these posters  is made entirely from living and pigmented bacteria. The posters offer great benefits over traditionally printed posters in that the print is entirely natural, biodegradable, and endlessly renewable. Further to this, the use of living biological agents adds a certain frission to the message and means that the posters cannot be simply removed in that removal requires a specialist biohazard removal team!

The ink. Not a conventional printing ink, but the red pigmented
bacterium Serratia marcescens

The loaded roller

A finished poster. Appropriately labelled