Translators vary.
First published in Japan in 2007-2008 by Kadokawa Publishing Co., Ltd., Tokyo.
v. 1. The Terror of death
v. 2. Borderline MMO
v. 3. Harald's archetype
v. 4. 8-Dimensional thoughts.
.hack//G.U. by Tatsuya Hamazaki. ISBN 9781427815255. Published by Tokyopop in 2008. Publication and catalogue information, links to buy online and reader comments.