The papers collected here are those selected for presentation at the Eighth IFIP Conference on Engineering for Human-Computer Interaction (EHCI 2001) held in Toronto, Canada in May 2001. The conference is organized by the International Federation of Information Processing (IFIP) Working Group 2.7 (13.4) for Interface User Engineering, Rick Kazman being the conference chair, Nicholas Graham and Philippe Palanque being the chairs of the program committee. The conference was co-located with ICSE 2001 and co-sponsored by ACM. The aim of the IFIP working group is to investigate the nature, concepts, and construction of user interfaces for software systems. The group's scope is: • to develop user interfaces based on knowledge of system and user behavior; • to develop frameworks for reasoning about interactive systems; and • to develop engineering models for user interfaces. Every three years, the working group holds a working conference. The Seventh one was held September 14-18 1998 in Heraklion, Greece. This year, we innovated by organizing a regular conference held over three days.