This document provides an introduction to ecommerce using WordPress. It defines ecommerce as the electronic buying and selling of products online. Ecommerce allows both physical and digital products to be sold, as well as subscriptions, donations and courses. The benefits of ecommerce include reaching new customers, smoother cash flow, and lower costs compared to a physical store. However, ecommerce is also highly competitive and involves dealing with shipping and technical jargon. The document then discusses ecommerce options in WordPress like PayPal buttons, WooCommerce stores, and marketplaces. It concludes by considering important factors like payment methods, legal compliance, marketing, shipping, and choosing a scalable system.