Production
Five Questions to Ask Before You Book a Guest
A famous name does not guarantee a useful conversation. A clear guest fit protects the audience and the episode.

Before you send an invitation, ask five questions. Does this guest have direct experience with the topic? Can they explain the idea clearly? Will they offer something your audience cannot get from a quick search? Are their claims responsible? Does this conversation fit the promise of your show?
Then prepare beyond the biography. Read the guest's recent work, identify one point of tension, and build a path from the listener's basic question to the deeper answer.
The best interviews feel natural because the structure is strong. Preparation gives both people freedom to listen, respond, and follow the truth of the conversation.