The article below is just a basic introduction to the topic. For something more advanced, written by pros and a fantastic leveling guide, my recommendation would be this Elder Scrolls Online Leveling Guide. I could not find any other guide that comes even close in terms of the impact it had on me.
The Elder Scrolls Online is a game that contains three major Alliances which battle whom is most suitable to take the Imperial Throne of Tamriel. Within the Alliances, old friends come together to make peace for their Queen while other factions are united only for the mere fact they once shared a deep rivalry with one another.
Players will have the choice of choosing which Alliance they wish to pledge their allegiance to along with 9 distinct races.
Who will you fight for?