Here is my review of all current c-k works. Over the past months, I have gathered almost everything there is, at whatever price
Advance:
Velickovic, Informator CD 2004: this is an excellent database, full of annotated games and surveys. Assessments are objective and spot on, with alot of analysis new to me. If Black is looking to surprise White, there is plenty of ammunition here with some rare, but surprisingly strong lines. Coverage is complete on all lines for both colours. As a bonus, 3. f3 is also covered!
I think all C-K players should have a copy of this database.
Byron Jacobs, Everyman: This one is VERY dated. But its good at explaining ideas and making sense of the frequently chaotic positions. A reasonable buy if you are starting out on these positions, or if you find the Informator database too lacking in words. For most serious c-k players, the Informator database should be enough.
Classical:
My only interest is in 4... Bf5/7... Nd7/0-0 (as played by Dreev, Bareev, Anand) so have mainly only read these parts in the following books.
Neil McDonald, Everyman: This is useful for the beginning player but theory has moved quite abit since 2001. A number of lines are missing, especially 11... Qa5+/11... Bb4+. I also think McDonald doesn't emphasise enough on the dangerous g-pawn sacs that Khalifman recommends in Anand3, it is dangerous for Black to play 4... Bf5 and 0-0 with only McDonald's book. But to be fair, these White ideas only became popular in the last two years or so. If you already keep up using NIC Yearbooks, of which Alon Greenfeld's surveys are fantastic (and you are happy simply playing Be7 and 0-0), then you don't really need this book, which was the case for me!
As an aside, I found McDonald's coverage on the Bronstein-Larsen 4... Nf6 5. Nxf6 gf6 interesting. He makes a reasonable case for Black, even when White fianchettos. I am no expert here, but if you like the B-L then this book looks a must.
Kasparov/Shakarov: Mine is the 2nd ed from Batsford. Same comments as above apply, theory has moved on. But here you have Kasparov's interesting comments (as usual he is a man of strong opinions!), and its amazing how far-sighted he was. Many of his comments and suggestions are now main line theory. Coverage of older theory here like 6. N1e2 and 6. Bc4 is good, and some of the tactical variations have to be seen to be believed. Kaspy has a knack for pointing out critical moments in the game, and critical maneuvers in critical positions. This book is worth picking up, if you can ever find a copy!
Opening for White According to Anand3, Khalifman, Chess Stars 2004:
Okay this is the one you've been waiting for. An excellent piece of work by Khalifman, but Black players need not be afraid. I agree with Tracke's comments in general. Indeed there have been improvements for Black since Khalifman's book was published! Some of which are featured by Andrew Martin here on Chesspub, or in NIC. Amazing how fast theory changes nowadays
One recent example is
7... Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Qa5+ 12. Bd2 Bb4 13. c3 Be7 14. c4 Qc7 15. d5!? (Khalifman's suggestion) cd5 16. cd5 Qd6! (Khenkin's novelty in Rodriguez-Khenkin 2005) and Martin already likes Black, see July update.
There are of course other examples, but if you understand I don't wish to show my whole repertoire! Besides, if you have kept up with chesspub/NIC yearbooks you can start to notice some differences in opinions. It is these occasional moments where it may seem Khalifman annotates "by result", quoting long game references, which is not a completely healthy sign.
As I come from the black side, I look at this book as a huge skeptic! But since this is a White repertoire book afterall, a little optimism from Khalifman is probably justified. Khalifman has pointed out the critical continuations, while providing many strong novelties, and good explanations, this is top-notch stuff, and indispensable for the WHite player
But one should have realistic expectations. You cannot bust a major opening like a caro-kann in one book! Black is very much alive, at least after 4... Bf5 and 7... Nd7 (hardly any spectacular novelties here).
Okay this has been a long post, I have some more books/cd and will post my opinions on them later.