As author of Talk Radio Wants You – An Intimate Guide to 700 Shows and How to Get Invited (McFarland & Co. 2009), 16 ebooks of talk radio shows, and an on-line publicist who gets her clients on radio shows, I can tell you that the most popular talk radio shows cover six categories: Business, New Age, Self-Help, Politics, Entertainment, and Health Both my book and ebooks have more shows in those categories than any others, including animals, environment, relationships, food and travel, house and garden, and science and technology. If you are an expert in any of these areas, there is a good chance you can be a guest on radio. Not only are there more shows with those themes, but the more shows the more competition for guests.
I can also tell you that most hosts prefer emails over telephone, and want guests with personality and expertise. After all, radio hosts are in the business of entertainment. If you are comfortable talking on the radio and can give listeners valuable information you are a shoo-in. While authors have a slight advantage over non-authors in getting interviews, there is no reason why non-authors who are experts are not popular guests. In fact, I recently proposed sending bios of some of my authors to a host of an entertainment show and he wrote back that it would be nice to have authors on for a change. He probably is used to interviewing musicians and artists who haven’t written books.
If you want exposure, radio interviews are free and you can do the interview from home in your pajamas. Why not take advantage of this popular medium? Remember – radio hosts NEED guests.