Translated from the Japanese.
"Original Japanese edition published in 2000 by Shogakukan Inc., Tokyo"--Vol. 1, colophon.
"This book reads from right to left"--Back cover.
v. 20. Humanity in the balance
v. 21. Arrival of the space aliens.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Naoki Urasawa's 20th century boys by Naoki Urasawa. ISBN 9781421542775. Published by VIZ Media in 2009. Publication and catalogue information, links to buy online and reader comments.
