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
Four groups of Zygons attempted to make Earth more like Zygor: those who arrived in the 12th century (TV: Terror of the Zygons), those that arrived in the 16th century and plotted to invade in the 21st century (TV: The Day of the Doctor), those that arrived in 1909 (PROSE: Sting of the Zygons), and those that arrived in the late-20th century. (HOMEVID: Zygon: When Being You Just Isn't Enough)
This section will be a brief section to look at the talent advisors in both Dugi’s guide & Zygor’s guide. For new players having a talent advisor is a perfect feature, as you probably don not really know what talents are good and what talents are not. Even for us experienced players; rolling an alt might be difficult at first as we have to research good talent builds for leveling.