Daniel Fazio explains that a VSL is a video sales letter: a one-way sales call recorded and used to sell. If you want to hit high revenue targets like $100k/month, a VSL answers the questions prospects would ask on a live call before they even ask them.
What is a VSL and why do you need one if you want to hit 100k per month? A BSL stands for Video Sales Letter. So what exactly does that mean? It's just the contents of what would otherwise be on a sales call transposed onto a video to act as a sales mechanism. It's literally just a one way sales call. You just answer what is otherwise going to be asked on the call anyway.
