Lots of people—in China, Vietnam, the U.S., and many other places—celebrate the lunar new year, which begins on February 18th, and the publisher Kane/Miller posts a lovely New Year's greeting at its site. If you're looking for additional children's books to share about the holiday, visit the Edge of the Forest journal and the blog A Wrung Sponge for recommendations.
I like the counting book Ten Mice for Tet (Chronicle Books, 2003). With colorful embroidered illustrations and a helpful afterword, the picture book is a good introduction to the Vietnamese celebration.
Happy new year!
Correction 2/18/07: Thinking mistakenly that yesterday was the 18th, I wrote that the Lunar New Year started on Saturday. That was wrong, and I apologize. The Year of the Boar starts today, Sunday, 2/18. I corrected the information in the post.