Whenever I'm doing in-depth research for a piece of journalism, I always re-discover the amazing quality of nonfiction books
A good nonfiction book is the most information-rich/dense piece of media on the planet
The qualifier "good" being crucial here, bien sur
But if it *is* good? Holy crap
You hold in your hands the product of someone who spent years exploring a subject, and sifting for the absolute best data/stories
Nothing -- no documentary, magazine piece, white paper -- can compare