I thought Prima might have one, but as @Merlin13KAGL points out, an MMO doesn't really lend itself well to a paper strategy guide, given that things keep getting changed/added/removed.
Usually by the time the game comes out, the strategy guide that was written for it is outdated. They learned to stop doing guides for MMOs around 2006 or so because of this.
Play the game, google something if you have questions. As you become more experienced, the right questions will become apparent, and in most cases someone on the Internet (and probably in these here forums) will have an answer.
You don't need a strategy guide for this game as there aren't any hidden things that require exploration like Skyrim or Oblivion had. Also, as far as I know at least, there are no calendar events or anything of the sort beyond the WW and vampire spawns.