Leveling a Mage can be extremely tough. There is always three talent trees: Arcane, Frost, and Fire. Which one is the most effective for leveling? What is considered the best spec to help you get towards the level cap easiest and quickest?
Aside from the best tree and spec, what about specific zones, quests, and dungeons? Sure, there's some addons offered that can tell you the shortest distance and order of quests in accordance with all you have inside the quest log, but those addons don't show you what quests are good and which of them are the best. They only indicate the shortest path to finish what you've collected. That is hardly efficient.
Dugi's Ultimate WoW Guide is just what you need. It's an addon which has not just the optimal talent tree and spec for leveling your Mage, but it also contains guides for leveling from level one entirely up to the level cap. This guide includes a GPS arrow that will display the direction to go, the order of the quests, and tell you what to do so you don't even need to waste time reading the quest if you do not want to.