"I Just Make Them Up, See!" is a comic science fiction poem by American writer Isaac Asimov, written in 1957. The poem is a monologue from a fan, asking Asimov how he comes up with his ideas. The question is not answered in the poem, but rather the title itself: I Just Make Them Up, See!
It was collected in the anthologies Nine Tomorrows, The Best Science Fiction of Isaac Asimov, and The Complete Stories.