Collects Elephantmen: War Toys #1-3, Elephantmen: War Toys - Yvette and Elephantmen #34-35. Written by Richard Starkings. Art by Moritat, Boo Cook, Axel Medellin and Ladrönn.
From the publisher:
Collecting the sold out WAR TOYS, now in full color for the first time, and the sequel, ENEMY SPECIES, this highly anticipated ELEPHANTMEN, VOL. 0 is packed with extras, including MORITAT and BOO COOK sketchbooks and unseen work by LADRÖNN, MARIAN CHURCHLAND, MARLEY ZARCONE and a new prologue by AXEL MEDELLIN!