The twenty-sixth book: #26 A Modest Proposal - Jonathan Swift
Here's a short one - more an essay or pamphlet than a full novel - extolling a rather drastic solution to the overpopulation problems in Ireland of the day. It's short, with a simple premise, but incredibly well written and fun in the satire it presents. It's more obvious than Gulliver's Travels, sure, but it works. And on some level, this still feels applicable as a commentary on crazier schemes these days.