Welcome to the new gold rush, except this time, the mines are in your head. Digital products are assets you build once and sell forever. eBooks, online courses, Notion templates, design files, and mini SaaS tools, all fall under this high-margin, infinitely scalable empire. Unlike physical goods, digital products skip shipping fees, inventory stress, and middlemen. They thrive on automation, digital marketing, and creativity. This guide walks you through the entire system, from idea to launch to scaling, so you can start generating sales even while asleep.