E-cigarettes are popular. They''re also sold to help people quit using cigarettes but they present dangers of their own. Despite assurances from producers that the devices are safe, there are warnings from health experts that their use can be addictive and contain carcinogens. This essential book helps readers analyze the benefits of these devices. They''ll learn what’s in the vapor they are inhaling, how the vapor can harm them, and the improper way e-cigarettes are used. They will discover ways they can help others kick the e-cigarette habit.