This special edition of "Economic Update" is devoted to Understanding Marxism, the title of a short new book just published by Democracyatwork. Today's program, like the book, explains Marxism's systemic insights into capitalism now. We discuss Marxism's basic criticisms of capitalism and also its complex relationship to socialism. Finally, we offer a survey of the last century of Marxism's huge, diverse influences on modern economics, politics and culture around the world.