First, don't gamble on a 16 seed.

WSJ: Dan Heath and The NCAA Tournament: The Dark Art of Bracket Psychology

"This is a big gamble for us, but I don't see that much downside, " says Tony Lyons, Skyhorse's publisher.

WSJ: JFK Assassination Conspiracy Theories Sell Lots of Books

Crops don't do especially well, and foraging in the jungle is a day-by-day gamble.

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