As an event planner since the 80's, I've been aware of Denise & Alan Field's book for quite some time. The newest edition is just as useful now as their first one was years ago.
Long, long ago ... before the Internet ... planning your wedding was a local endeavor where you were at the mercy of Bridal Show exhibitors. If you were lucky, you could get truthful information from couples who'd already gone through the process. If you were lucky.
Bridal Bargains took the secrecy out of wedding planning and exposed it to the light of common sense and economic forces.
This book is the first one I recommend to the wedding planning classes I teach, the first one I used myself, and the most comprehensive I've found to date.
Now they've added a plethora of web site addresses.
Yes, web sites come and go, but an afternoon spent flipping through the book and trying various sites (and I compared them with a few other books who provide web address information) found this book to have the highest number of 'live' addresses. When time is at a premium, this is an important factor.
I noticed that a previous reviewer wasn't happy with the amount of the book dedicated to buying a wedding dress. I can certainly understand that, but with the majority of brides purchasing from bridal shops, discounters, and major manufacturers, this information needs to be exhaustive.
In the 22 years I've been 'doing' weddings, I have had less than 15 brides have dresses specially made for them, perhaps another 12 who wore suits or a dress not designated as 'bridal', and maybe 9 who wore a dress belonging to a Mom, Grandmother, or other family member. Denise & Alan's emphasis on dress manufacturers reflects the reality of the market.
All in all, this is a book well worth the price. Use it and save yourself time, money, and stress.