Some recommendations for books on podcasts are:
1. "Podcast Launch: A Step by Step Podcasting Guide" by John Lee Dumas
2. "Out on the Wire: The Storytelling Secrets of the New Masters of Radio" by Jessica Abel
3. "Podcasting For Dummies" by Tee Morris and Chuck Tomasi
4. "The Podcast Playbook: The Complete Guide to Starting a Podcast" by John Lee Dumas
5. "Podcastnomics: The Book of Podcasting… To Make You Millions" by Naresh Vissa
Some recommendations for podcasts about books are:
1. The Book Review Podcast from The New York Times
2. Book Riot Podcast
3. Overdue Podcast
4. What Should I Read Next? Podcast
5. The Book Review Podcast from The Guardian