This week’s subject: The history of communication

Is a picture still worth a thousand words in a world with cell phones, e-mail and satellite TV? Whether it’s verbal or nonverbal, visual or written or electronic, communication has changed dramatically from the cave paintings, stone carvings and smoke signals of long ago. Explore the history of communication and the many ways people have expressed their ideas through the direct links on The Times’ Launch Point Web site: https://www.latimes.com/lauchpoint/