Ryan Scribner wrote a book called “From Side Hustle To Main Hustle To Millionaire” about his side hustle journey. He started off as a utility worker in Upstate NY before launching his YouTube channel in 2016 as a side hustle. In 2017, he went full time with the online business, quitting his job. Since then, he has grown his channel to 800,000 subscribers. Ryan now shares side hustle tips with others and is an angel investor in many fintech companies.