Thanks for mentioning my book! I'm glad you found it useful.

To answer the OP, I learned tons doing my first podcast: - It was the first time I'd used WordPress to build a site - It was the first time I'd edited audio with Audacity - It was the first time I'd used any kind of opt-in form to build a mailing list - It was the first time I did any kind of automated social media marketing - It was the first time I'd done long-form interviews with people - Etc

GREAT experience. The best thing was making friends with all my guests. I was bummed when the podcast ended, but it was time.

I'm gearing up to start a new podcast right now, for freelancers and consultants. It should be launching next month & I'm pretty excited about it.