I wouldn't buy Zygor guides. As a player since path 1.10 (around 7 years now) Ive seen a hearty wow community flourish through each expansion. I am a huge fan of the add on, Carbonite quest. It provides a pumped up version of wow's internal quest database. Also, its recommended to research your servers economy for making gold. http://www.powerwordgold.net/ is a great site for tricks of making gold. Pair it up with http://www.theunderminejournal.com and you'll be on your way to making fast gold to provide for all them alts :P
That’s where the Zygor guide came in handy. There was a mini Zygor viewer within the game that broke down the steps in the quest so I’d be able to accomplish it easier. Do you notice the yellow arrow at the top of the heads of Norciandra and the draenei Proenitus? Well, it’s the “waypoint” and whenever I clicked on the quest in the viewer, it pointed me to a particular path and showed how far or close I was to the quest. It turned green whenever I was on the right track and yellow when I tried to head to different directions.
I only subscribed about 2 days ago after coming back to WoW after 6 years. The game has changed so much since I left right around the Cata release. I decided to start fresh on a new server. I still had all my old links and logins to places like Curse, WowInterface, etc. Loaded up all the addons I had favorited years ago (of the maybe 1/3rd that were still maintained). Got to level 20 in a few hours of playing. Had to look a bunch of stuff up.