What are /r/DeathByMillennial's favorite Products & Services?

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Terrible generalizations about Millennials aside, "Man's Search for Meaning" by Viktor Frankl should be required reading in highschool. Not sure what subject -- Science? History? Something. It's a first-hand account of a concentration camp written from a psychiatrist's perspective, so it explains what happens to a person's psyche when forced to undergo such horrors. It's hard to get through, and you will never question how bad the Holocaust was after that.