Chandler Burr, author of The Emporer of Scent, has a piece in the March 14th issue of the New Yorker entitled "The Scent of the Nile." If you can find a copy, DO pick it up. The piece covers the birth of a new fragrance (Hermes Un Jardin surle Nil) from conception to creation . A definite must read for anyone interested in how a prestigious house comes up with a new fragrance.
The piece is also available on Burr's website