What is the definitive guide to mastering voiceover according to Gabrielle Nistico?

According to me, the definitive guide to mastering voiceover at the beginner level is my book VO101, now in its revised 7th edition and available on Amazon.

It’s a comprehensive self-study guide for people contemplating a voiceover career or training on a budget, and it’s also the companion guide to my voiceover classes. I cover the industry, performance, technical skills, marketing, and include 30+ practice lessons and sample copy.

Are you just getting started in voiceover, or have you already done some training?