This Coronet series is notable in that it is the most complete set of James Bond books to date, and maybe the most complete set we'll ever get. Aren't they glorious!
There are a few curiosities in the Coronet set to watch out for. First and foremost are the two editions of Dr. No. According to some fine detective work by Devin Zydel on CommanderBond.net, rejected artwork by Bill Gregory depicting a knife in Honey's (?) hand was "mistakenly" used on the 9th edition only. Copies of Dr. No before and after feature the more common spider art by David Scutt. Not sure why this happened (or even how it could happen), but I personally prefer the knife artwork. This rogue Dr. No is definitely one to seek out (ISBN 0-340-41899-0).*
Another paperback of interest is a 2003 omnibus containing the first three John Gardner books. Even though this was published well after the Coronet series had ended (and IFP were reissuing the books with new covers through Penguin), the book uses the old series logo and artwork from their 1995 For Special Services.
There was also an early plan to release John Gardner's novelization of GoldenEye with this series artwork (the prototype cover featured a bearded Pierce Brosnan). While the final Coronet GoldenEye and Tomorrow Never Dies paperbacks would ultimately sport stand alone cover art, the spines would retain the James Bond Coronet series logo, so they still line up pretty well on the shelf with the other books and could still be considered part of this series. (There are two variations of TND, but I'll get into that when we get into novelizations as a set.)
On a personal note, I've never been able to locate a copy (at a reasonable price) of Coronet's Win, Lose Or Die for my own collection. I believe it's the only John Gardner paperback that I'm missing. Can anyone help a brother out?
*UPDATE: Stewart Larking, the man who designed all these covers, got in touch with me to share The inside story of the two DR. NO covers.