I emailed Tim O’Reilly in ~2001 and suggested they release PDF versions of their “Pocket Guide” reference books. I wanted to be able to have all of my pocket g

I emailed Tim O’Reilly in ~2001 and suggested they release PDF versions of their “Pocket Guide” reference books. I wanted to be able to have all of my pocket guides on my Sharp Zaurus (Linux handheld with keyboard, color screen, and Wi-Fi). He went for it and offered me PDF copies of every Pocket Guide as a thank you.