Amazon.com: Galison Book Club Puzzle, 1,000 Pieces, 20” x 27'' – Colorful, Humorous Illustration of Hundreds of People Reading Books - Thick, Sturdy Pieces – Challenging, Makes a Great Gift, Multicolor : Toys & Games
20,000/60,000 pieces of the world's largest jigsaw puzzle done. Already a third of the way done. : r/Jigsawpuzzles