If you want to know even more about your customers, then check out MailChimp's Subscriber Activity Reports. They give you extra insight about your recipients, like who opened your emails and what they clicked. See a real-time report for each recipient's email activities: when they opened, what they clicked, and when they came back. You can even generate a list of people who did not open, and send them a modified campaign.

MailChimp has a ton of reports. For more information, visit our Knowledge Base to see what you can learn from them.