WORK
The Evolution of Useful Things
Henry Petroski's 1992 examination of how ordinary artifacts — forks, zippers, paper clips, Post-it notes — achieve their current forms through distributed, use-driven iteration rather than inspired breakthrough, and the book that most systematically developed the
form follows failure principle.
The Evolution of Useful Things extends the method Petroski established in
The Pencil (1990) across the full range of designed artifacts. The book's central argument is that useful design emerges not from genius but from iteration driven by the
identification of failure in use: the two-tined fork that lets food slip, the three-tined fork that traps food awkwardly, the four-tined fork that resolves both problems and persists. Each chapter examines a different artifact — the zipper's progression from Judson's unreliable 1893 patent to Sundback's 1913 interlocking-teeth mechanism; the paper clip's hundred competing variations narrowed by market selection to a handful of survivors; Spencer Silver's weak adhesive becoming the Post-it note when Art Fry needed a bookmark for his hymnal.
The pattern in each case is the same: variation produced by many designers, selection performed by use,
retention accomplished through manufacturing and market success. The book is Petroski's most sustained argument that the designed