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 Alik’r Desert is a dry and harsh wasteland where only the strong survive. The desert is located north of Hammerfell and it is used to challenge Redguard warriors through a rite of passage.