MASLOW’S HIERARCHY of needs is helpful in understanding your audience’s needs. For example, it might be hard to convince a group of low-income single mothers to enroll their kids in various costly extracurricular activities. (top left) John Moore/Getty Images; (top middle) Getty Images; (top right) Josephine Soughan & Simon Pentleton/PYMCA; (bottom left) lzf/Shutterstock; (bottom right) AFP/Getty Images