The Kumon logo is known as the "Thinking Face." [source]
Yeah, thinking about killing itself.
I don't see "thinking." I see "confused" and/or "miserable," which are not feelings you want your logo to convey if you're an educational enterprise.
The face should be smiling. "Yay! Learning!" Or in my case: "Yay! Stealing!"
Kumon enabled my juvenile kleptomania. After "class," I would filch magazines from a neighbouring Safeway. TV Guide and Disney Adventures fit snugly inside my Kumon case.
I stole TV Guides to memorize programming schedules.