Email marketing is a digital marketing technique that involves sending targeted messages to a group of recipients via email. It is used to promote products, services, or engage with an audience for various purposes, such as building brand loyalty, driving sales, and sharing information. Effective email marketing campaigns often include personalized content, compelling visuals, and clear calls to action. Email marketing is a cost-effective way to reach a large audience and is essential for maintaining customer relationships, generating leads, and nurturing prospects. Success depends on segmentation, A/B testing, and analytics for continual improvement.