This document provides an introduction to using Twitter for marketing purposes. It outlines that social media is an important component of online marketing for brand building, lead generation, customer service, expanding reach, and connecting with influencers. Twitter specifically is highlighted as the most effective social media tool for real-time communication. Best practices for Twitter include being authentic, responsive, respectful, knowledgeable, engaging with followers, and producing quality content at varied times. Example tools for managing Twitter accounts and additional resources are also listed.