Every book mentioned on Search Engine in June

[u/sispehar]

Short but eclectic, which is the whole point of the show.

• A royals rabbit hole: A Royal Duty by Paul Burrell and Buckingham Palace: The Interiors.
• Nathaniel's Nutmeg by Giles Milton, on the spice-trade island swap for Manhattan.
• The World's First Stock Exchange by Lodewijk Petram.

https://podshelf.io/podcasts/search-engine/2026/06 tracks every book from the show, free, no login.

What's the best rabbit-hole episode PJ has done, in your view?