Common Knowledge Cartoons and Comics

"I shouldn't be telling you, but the artist's real name is J. K. Rowling."

'Haffner, we'll have none of your common sense suggestions!'

'You know they say if you throw a baby into the water it'll swim? ... not true.'

Tee Shirt: In Search of Things Known and Agreed Upon

"How do you do endnotes for stuff you just know."

"Well, since it has become common knowledge that money never makes people happy, we will no longer be giving out any raises."