How does Sonia Maasik use imagery in Signs of Life in the U.S.A.?

Maasik does not use imagery, per se, but she does note that when confronted with advertisements, the critical thinker will ask why he/she is being shown or told something. Look at all of the details of the ad and ask about the colors and the figures that are chosen. Be critical. Learn to interpret the signs and you will learn to find the values that the advertiser is appealing to or trying to exploit. Many ads are based on imagery. They are selling the situation, like the fun the viewer sees the participants having in the ad. Drink this soft drink and you too will be popular is the message of the ad. The purpose of the ad is to make you feel that you need the product. You don't just want it.