Every hard interface problem, and the pattern that solves it.

A 480-page reference for product designers: 96 patterns, each with the failure it prevents, real screenshots, and when not to use it. Sold as a book and a searchable site. Here's the table of contents doing the selling.

PART I — INPUT & FORGIVENESS

Undo as a first-class citizen014 The confirmation dialog you should delete029 Drafts nobody loses041

PART II — WAITING & TRUST

Progress bars that don't lie118 Empty states that recruit142 The skeleton screen, used honestly156

PART III — POWER & DENSITY

Command palettes beyond ⌘K233 Tables that survive 10,000 rows261 Settings: the junk drawer, organized297

… + 87 more patterns across six parts

$68 book + site · $39 site only

Team licenses from $290 · free chapter: “Undo as a first-class citizen”

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“It ended four design debates in the first week. Paid for itself in meetings alone.”

— Head of Design, 40-person product org