A bit last minute, but we just got news that a famous manga artist is making an appearance at Kinokuniya Orchard(Ngee Ann City). Yoshihiro Tatsumi(辰巳ヨシヒロ) is well-known as one of the pioneers of the 劇画(Gekiga) style of manga art.
Check out the following Wiki pages for more details:
Event details are as follows-
Venue: Kinokuniya Singapore Main Store
Date: 17th January 2010(Sunday)