Starting with only 200 titles in the survey, for a final list of 100, seems off to me for starters. Every book surveyed has a 50% chance of making “book of the century”

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tstenner 5 hours ago | parent [-]

That makes it sound like 50 shades of grey would have had a 50/50 chance of getting into the top 100 if it only was included in the wider selection

	▲	onli 2 hours ago \| parent [-]
		If the question is "which book stuck in your mind" maybe it would've had a good chance to be listed as #1?