Highly rated books published more than 15 years ago.

Design Charrettes for Sustainable Communities Patrick M. Condon
Bringing User Experience to Healthcare Improvement: The Concepts, Methods and Practices of Experience-based Design Paul Bate, Glenn Robert
Facilitator's Guide to Participatory Decision-Making Sam Kaner
Co-Design: A Process of Design Participation Stanley King, Merinda Conley, Bill Latimer, Drew Ferrari