At a leadership convention in Melbourne I was asked to add one more hat to the original 6 developed by SOT in 1983. I have designed the 7th Hat for Wisdom which is the Grey Thinking Hat. The book will be published later this year.
Of all the Thinking Hats–White, Black, Yellow, Red, Green, Blue–the Grey Hat is also the Senior Hat.
(Master Vincent van Gogh’s Self Portrait with Grey Hat, Paris, 1887)
EXPERIENCE + KNOWLEDGE = WISDOM
wisdom n. experience and knowledge together
with the power of applying them critically or practically
– Oxford English Dictionary
FROM BLACK HAT TO GREY HAT
is all about the escape
from judgmental thinking to wisdom.