Princess Diana's risk-taking fashion was considered a challenge to the unwritten conventions of royal dress.
A new exhibition marks the 20th anniversary of the Princess's death and will showcase her exquisite fashion pieces up close for the first time.
Deirdre Murphy, senior curator at the Historic Royal Palaces, said Diana was unique in the way she used clothes to communicate.
"Somehow women all over the world saw a piece of themselves in the princess," the curator said. "She got her image across and her ideas across using clothing in a really sophisticated, really smart, really thoughtful way."
The public's fascination with Diana's life and her clothes lives on. The exhibition opens on Friday at Kensington Palace, her home for many years.