LUCA TURIN is the man who perfume-lovers openly adore. He's the author of The Secret of Scent (Faber, 2006). His top-rated perfume is Guerlain's Mitsouko.

TANIA SANCHEZ is journalist and a perfume collector and expert from New York. Her personal perfume collection numbers almost 2000 bottles.

They are married and divide their time between Boston and London.