Yotsuba&!, Junji Ito's works ... I Am a Hero has panels upon panels without a single word of text. This works fine with manga, but might not translate well to an animated medium.

Azumanga Daioh is a yonkoma (four panel) comedy manga written by Kiyohiko Azuma between February 1999 and May 2002, which received a popular anime adaptation in 2002. The Yotsuba Volume 16 is now ...