A write-up of World IA Day 2016 held in Bristol, covering talks from multiple speakers on information architecture (IA). Topics included a historical overview of IA's four paradigms (Classic, User-generated, Pervasive, and Inversion), physical prototyping for enterprise UX, how the BBC manages IA at scale, how Ordnance Survey uses IA commercially, and a keynote exploring whether 'architecting' is a verb and how architecture differs fundamentally from design.