Before I even got my first breeding pair I read EVERYTHING I could get my hands on about betta breeding, fry development, health, conformation and nutrition. And let me tell you, that is enough knowledge to make a encyclopedia.
Like WetBetta said there is no one way to breed bettas, it is really what will work best for you and keep your bettas and fry healthy and happy. For me it was using the basic breeder setup using a ten gallon filled halfway stuffed with live plants and a few IAL.
Raising this spawn I am now is one of the best things I have ever done, it is so satisfying to see the fry grow from eggs to the vibrant, young fish they are now all with their own personalities.
So the best advice I can give you? READ READ READ! Come to your own conclusions and find what works best with you. Trust me, it is worth the months to learn everything you need to know in order to see a successful spawn.