People are turning to audio and visuals when it comes to technical subjects. However, you should consider doing an ebook first and turning it into an audiobook through a resource like Audible's ACX platform. You can hire a producer either through a royalty share program, so you don't have to shell out upfront cash, or you can do a pay-per-hour hire as well.
Also, there’s one important thing you should know… I am personally biased when it comes to the reviews on my site because I’m a member of all of the top 10 home business opportunities listed below. They are how I make my living from home. If you decide to join one, you will be joining my team and possibly helping me make more money in my home business. But hopefully, I’ll be helping you make money too by connecting you with a truly outstanding work-at-home business opportunity, and helping to train you to be successful in a home-based business just like I am! 🙂