Collection of Letters?

[Jerry P.]

Can anyone tell me, is there a database or website (or book) that lists all (or at least a great deal) of the existing "Ripper Letters"?

I read in one of the dissertations that there are around 200 or so.

Thank you.

[Steven Russell]

Dear Jerry,
Try "Jack the Ripper: Letters from Hell" by Evans and Skinner.
Best wishes,

Steve.