First, a few reasons why I'd cut this book some slack - (1) a coffee table book can be forgiven some compromise with the narrative integrity of the text (2) It's 23 years old (3) it's probably aimed at a casual fragrance enthusiast and not a well-informed high-speed-internet era "fraghead" who can nitpick brutally.
Pros - pretty pictures, fascinating anecdotes, interesting insights from lots of industry people, the passion of olfactory art is described in a non-pretentious way (the last two lines of the book sum this up very well).
Cons - inaccuracies - prime example: a book about fragrance CANNOT afford to spell "sandalwood" incorrectly; narration is jumpy - the author often digresses to unrelated topics for a few paragraphs before returning; some info is outdated to the point of becoming incorrect (e.g. copying of fragrances using GC/MS is a very real concern today, unlike what the book asserts).
At any rate, there's enough good stuff here to deserve 3 stars.