Martha Speaks is an animated series on PBS KIDS. Aimed at viewers between the ages of four and seven, Martha's educational goal is to teach kids new words. Based on the children's book series by Susan Meddaugh and published by Houghton Mifflin Harcourt, the series stars Martha, a beloved family dog. She is accidentally fed alphabet soup -- this gives her the power of speech and the chance to speak her mind to anyone that will listen.