How to Do Research Before a Guest Interview (Without Over-Preparing)
Research is where most podcast hosts fall on one of two extremes: they do too little (arriving unprepared, asking questions the guest has answered a hundred times) or too much (arriving with such detailed notes that the interview becomes a rigid walk-through of prepared material with no room for genuine conversation).
Both failure modes produce worse interviews than the right approach.
The Goals of Pre-Interview Research
Your research should accomplish four things:
Understand the guest's background well enough that you don't ask questions they've answered at length in other public conversations
Identify the specific angle or aspect of their work that your audience cares most about
Find the question nobody's asked them that you genuinely want answered
Discover the detail, story, or moment from their history that makes for a strong opening
That's it. Research in service of these four goals. Not research for the sake of comprehensive knowledge.
Where to Actually Look
Start with your guest's own content: their published work, previous podcast appearances, talks, social media, interviews. What narratives do they lean on? What stories do they always tell? What positions do they always defend?
Previous podcast appearances are particularly valuable because they show you both what's been covered and what the guest is comfortable discussing. Finding two or three appearances lets you cross-reference and identify patterns.
The reverse research move: Search for criticism of your guest's work or positions. Where have people pushed back on their ideas? What are the counterarguments to their main thesis? This generates the follow-up and challenge questions that most interviewers never ask because they only looked at material where the guest was being celebrated.
The Stopping Point
Two to three hours of research is enough for most guests. After that point, you're accumulating information without improving the questions you'll ask.
The critical discipline: stop reading and write down your five to seven core questions before recording. The research should funnel into a small number of specific, well-targeted questions — not an ever-growing list of things you might ask. The goal is a clear conversational agenda, not a comprehensive knowledge test.
The Conversation Before the Conversation
A brief pre-interview call or exchange — 10–15 minutes before the actual recording — serves several purposes. It lets both host and guest warm up before being on record. It often surfaces the most interesting topic to lead with (the thing the guest is most energized about right now, which you might not have found in your research). It also establishes rapport, which makes the recorded conversation feel more natural.
Many of the best moments in recorded interviews are the product of something that came up in the pre-call and was then explored properly on record.
