John Barleycorn is not only atypical of Jack London’s work, it’s different than most books about drinking or drug abuse. Assumed by most to be an autobiography, John Barleycorn also functions as an in-depth reflection on the lifestyle of a heavy drinker. London got drunk as early as five and seven years old, and that is where his drinking story begins. London tells of his exploits throughout his teenage years and early adult life, including being an oyster pirate, deep-sea sealer, miner, student, and writer. London packed an incredible amount of action into a short life, and John Barleycorn tells…