This document discusses different types of media including magazines and posters. It describes magazines as being categorized into consumer, trade/professional, and house organ types. Magazine circulation is paid, free, or controlled. The earliest magazines date back to the 1600s and new types continued to emerge throughout history. Posters also evolved over time, first being used to advertise and recruit for wars, and now primarily for commercial advertising purposes. Key developments included the invention of lithography and its use in colorful poster design in the late 1800s.