The Boron Letters -pdf- [patched] -

If you want to learn the mechanics of a winning sales letter and the philosophy of a winner, you need this in your library.

If you have ever typed into a search engine, you are likely standing at the edge of a very deep rabbit hole. On one side lies a prison diary; on the other lies the most unconventional, brutal, and effective education in direct-response copywriting and marketing ever written. The Boron Letters -PDF-