Better title: "A Collection of Corporate Memos That Are Worth Reading"

HN discourages clicky & editorial re-writes of a submitted article's titles. The article includes Apple, Google, & MS - but they're they a minority of it. And "secret" is 99% click-bait.

A collection of quite interesting memos for companies that are worth reading.

These are all internal memos that were made available for your perusal that you would likely never see otherwise!

Just go and look into the nearest septic tank, I bet it's gonna be a similar experience.