The 112-page volume collects the first four issues of the publisher's flagship title, which has proven to be a bestseller since its revival earlier this year.
Written by Robert Venditti and illustrated by Cary Nord, X-O Manowar follows a Visigoth warrior from the Roman ages named Aric of Dacia, who steals a sentient suit of armour from an evil alien race.
Eisner Award winner Nord entered an exclusivity deal with Valiant in March, and will continue to provide artwork for X-O Manowar.
Valiant announced that it was reviving the property last summer, following a partnership with Cueno & Company, LCC.
X-O Manowar Vol. 1: By the Sword is released on December 5.