In this week’s Mix Tape on the Kenyon Review blog: Billy Collins plays himself in a PBS cartoon—one about a talking dog—to celebrate National Poetry Month; unpublished poetry by Angela Carter has been discovered in old copies of her school magazine; The Mind Is a Metaphor, a database of metaphors housed at the University of Virginia, may come in handy for April and beyond; and other shiny bits and pieces of news for literary magpies.