Naoki Urasawa is a genius!
20th Century Boys is definitely my favorite of his series,
its story is so masterfully executed! Just a masterpiece.
When you're finished with that one, read Billy Bat, another
Naoki Urasawa series, which is still on-going. It's story is
so engrossing and complex, really great.
On that note, I bought a volume of the series Pluto, by
Naoki Urasawa, but want to buy the rest before reading it..
It's only like 8 volumes, and I only have the 2nd one, so
wouldn't feel right reading it.