This document provides an overview of email marketing best practices. It discusses how email marketing works by allowing targeting and segmentation, being data driven, and driving direct sales. It also covers where to start with email marketing by preparing objectives and plans. The document then discusses email service providers, growing email lists, email design, content, and common mistakes. It provides tips for subjects lines, delivery, permissions, social media, and A/B testing to improve email campaigns. The overall document gives a comprehensive look at developing and optimizing an email marketing strategy.