Boron Letters

Gary Halbert wrote The Boron Letters from prison in 1984, and they're still the gold standard for direct response copywriting. This skill teaches you his core principles: the A-pile test for getting mail opened, finding starving crowds instead of perfecting copy, the 40/40/20 rule that says your audience matters more than your words, and AIDA structure for sales letters. Use it when writing anything meant to generate a direct response: sales emails, landing pages, ads. The methodology is old school but the psychology is timeless. If your copy isn't converting, start here before you tweak another headline.

Install to Claude Code

npx -y skills add guia-matthieu/clawfu-skills --skill boron-letters --agent claude-code