Welcome to the first entry in my new series, Marx in Moments. My goal is to post at least one of these each month; this will act as an accessible glossary of Marxian concepts, terms, works, life events. Each entry will be concise, introductory, and free of academic jargon. Coming in under 600 words, these will be short and simple examinations, which obviously comes with some limitations; they should be read as a starting point.