The second volume of the Marvel Omnibus collection of Conan The Barbarian (the main series and not Savage Sword, which is collected in other Omnibusesieszes) covers a couple of years of the series in a really stupendous edition. Going from issues 27 to 51 and collecting for the first time in one place the Hour of the Dragon adaptations which was spread between the Giant-Size Conan series and a couple of issues of Savage Sword, this is a true ultimate edition.
Of course the comics are good, although this period is very Buscema centric (with contributions by Neal Adams and the Hour of the Dragon by Gil Kane), and Buscema in color isn't as interesting as Barry Windsor-Smith who dominates the first volume, or as the Buscema work for Savage Sword with the excellent ink work by people like Alcala, these are unmissable volumes.
The volumes are unmissable particularly because of the truly amazing editing work done here, if you are a fan of the series you want this, it includes every letter page, every introduction to every edition of the comics that ever existed and a long Roy Thomas intro to the whole thing, you get extra pages with pencil work, inks, pretty much everything that exists related to the issues and even more. Roy Thomas must have kept exhaustive diaries because he is able to recall every single detail of every delay, discussion or decision. You can tell that this was really his baby, he cared so much about Conan and he is so proud of his work here, that it is a joy to read his commentary. If you own any previous editions of this, as I actually do, it's a really worthy upgrade, there's so much care and love here, you feel really well taken care of as a fan.