Karen Haller is the leading international authority in the field of Applied Colour Psychology - how colour affects and influences our behaviour. With over twenty years of experience, she teaches, consults for businesses, interiors, healthcare and wellbeing; and has worked with prestigious global brands such as Marks and Spencer, Dove and AkzoNobel Dulux. She has also been interviewed for Cosmopolitan, the Stylist and The Times, contributed to the Huffington Post, and appeared on London Live and Channel 4's
Sunday Brunch.