There are multiple ways to build passive income, however, if you ask me what the easiest ways to build passive income is or what the best way to build passive income, I suggest you to monetize your expertise. What does monetizing your expertise actually means? Well, it means using your skills to create products and services that generate passive income. Let’s say you are a web designer and developer, you can create a website, build traffic and earn passive income though ads. Let’s say you are a writer, you can write and publish ebooks, you can earn passive income through your ebooks. Or you can create and sell online courses. Likewise, you can start a youtube channel and make passive income. The scope is unlimited.