These are a few of my favourites. This list will evolve as I discover new literature on this emerging field.

Design Thinking

The Design of Everyday Things: Revised and Expanded Edition
By Donald A. Norman

The Sciences of the Artificial, Third Edition
By Herbert A. Simon

Behaviour Change

Preference Change: Approaches from philosophy, economics and psychology
Edited by Till Grüne-Yanoff, Sven Ove Hansson

Nudge: Improving Decisions about Health, Wealth, and Happiness
By Richard H. Thaler, Cass R. Sunstein