You've located three books on a topic you're researching for an essay. the first thing you should do in determining if any of these books will be useful is

Examine an advertising campaign created by the center for disease control that promotes the influenza (flu) vaccination. analyze the campaign to discover the target audience and the advertising techniques used. then, evaluate the effectiveness of these advertising techniques. write a five-paragraph essay in which you explain how the advertising campaign effectively promotes the influenza vaccination to a range of audiences.