The Princes of the Yen is a bestselling book by German development economist Richard Werner.

The book was for many years considered too abstruse and obscure and yet at the same time, it was praised for its technical depth and well-researched nature.

All this changed with a documentary adaptation, which has now made the book and its concepts more accessible to the wider world.

The book has been hailed by many for having revealed the backroom dealings and secret plannings of the central bankers of Japan and the world in general.

[2][1] The book also owes its popularity to a much-appreciated documentary of the same name written and directed by Michael Oswald and released by Spider's Web Films.