Email marketing is a digital marketing strategy that uses emails to communicate with a target audience, promoting products, building relationships, and driving conversions. It involves sending targeted messages to individuals who have opted-in to receive them, with the goal of engaging customers, fostering brand loyalty, and ultimately increasing sales. 

Email marketing allows for personalized and segmented communication, ensuring that the right message reaches the right audience.
By including clear calls-to-action, email marketing can encourage users to visit a website, make a purchase, or take other desired actions.