I have a few of Berlin's essay collections.  I'll check.

The idea that the renaissance poets or writers wrote "in code" (or simply, and less conspiratorially, in figurative language or highly circumnavigatory language ) to either avoid political persecution or gain political preferment, is an idea concurrent with Renaissance writing itself, I think.  So if that's his key contribution, I have my doubts on his importance.  Maybe among political philosophers, so called, but among scholars, particularly historians and literary critics, I doubt it.  But what do I know?

I am the very model of a snappy modern dresser
My shelves are full of books on style by some old bloke called Flusser (sorry)
My shoes are filled by lasted trees of cedar and mahogany
For jackets I am partial to a shoulder by Corneliani
I would never wear a black shoe with a casual jacket
If I saw a child in a bow tie I would feel compelled to smack it
In short in matters concerning or touching on sartorial
It's only if you dress like me that I would think of being cordial.

An interesting read. This book came up again elsewhere. Is there really anything new in this book?