To attain higher levels of enchanting, enchanters often must repeatedly cast enchantments on their friends equipment, sell enchantments to other players, or offer free enchantments.

Another challenge for enchanters is gathering magic items to disenchant in order to gather the required enchanting reagents. Enchanting for a guild is typically the easiest since guild members send you items to disenchant. Another option is spending money to buy materials, buying trade skill items to disenchant, or using a high level character to try to find magic items to disenchant.

Additionally, enchanters must also work with other Profession masters to create a few other reagents required for enchanting.

Enchanter Levels
There are four levels of enchanting: Apprentice, Journeyman, Expert and Artisan. You will need to work your way up the ladder to enable more powerful enchantments.

Becoming an Enchanter

The "enchanting trainer" will start the player out with beginning-level enchanting. Ask a guard for directions to a trainer.
To begin enchanting, look for the enchanting icon in the abilities book (hit "p").

Enchantments also sometimes require specific components that can be purchased from trade merchants. Enchanters will also need a runed copper rod, and later a runed silver rod to perform certain enchantments. They will need to get this basic rod from a blacksmith (or buy it) and then enchant the rod themselves. Higher level enchants require more advanced/powerful rods.

Disenchanting

Disenchant - "Extracts the magical elementals from good quality (Green) or better weapons or armor. Destroys the weapon or armor in the process." After you disenchant an item, you'll receive a loot box and you can pick up the items you have created by disenchanting. You receive the Disenchant ability when you acquire enchanting. The reagent you get from disenchanting an item depends on the item type and level.
Armor - Usually dust (Sometimes essence and if you are very lucky, a shard)
Weapons - Usually essence (Sometimes dust and if you are very lucky, a shard)
Blue Items - A shard
Purple Items - Nexus Crystal

Epic items that are level 51 and above will disenchant into a Nexus Crystal. Also items that normally disenchant into Large Brilliant Shards have a very small chance of disenchanting into a Nexus Crystal. Powerful enchanting recipes that require these Crystals can be found in the Ahn'Qiraj content.

Dust
Found from armor and occasionally from weapons.

Dust Item Level

Strange Dust 1-20
Soul Dust 21-30
Vision Dust 31-40
Dream Dust 41-50
Illusion Dust 51-60

Essences
Essences are usually found from weapons but also sometimes from armor.

Essence Item Level

Lesser Magic Essence 1-10
Greater Magic Essence 11-15
Lesser Astral Essence 16-20
Greater Astral Essence 21-25
Lesser Mystic Essence 26-30
Greater Mystic Essence 31-35
Lesser Nether Essence 36-40
Greater Nether Essence 41-45
Lesser Eternal Essence 46-50
Greater Eternal Essence 51-60

Shards
Shards come from blue items but also have a small chance of coming from green items.

Shard Item Level

Small Glimmering Shard 1-20
Large Glimmering Shard 21-25
Small Glowing Shard 26-30
Large Glowing Shard 31-35
Small Radiant Shard 36-40
Large Radiant Shard 41-45
Small Brilliant Shard 46-50
Large Brilliant Shard 51-60

Your enchanting recipes then require various ingredients, with the really powerful ones requiring a shard as one of the reagents.

Make sure you don't disenchant an item you wish to keep.

Finding items to Disenchant

Ask your friends or guildmates to send you old items they don't want so that you can disenchant them.

Buy disenchantable items from other players. Some players try to sell them for this purpose.

Disenchant soulbound quest items rather than selling them.

Enchanting

Select the proper enchantment in the enchanting window, and press the enchant icon on your action bar (or the corresponding hotkey). Then, click on the item you wish to enchant. This can be performed upon items equipped by your character or in your inventory.
A method of enchanting items for other players is to use the non-trade slot in the trade screen window. Instruct the other player to place the item they wish to have them enchanted in the trade screen window. Next, the enchanter should perform the enchantment on the item in the trade screen. Place your cursor over the item, and it will indicate that the item has been enchanted and that it will not be traded. You both then press the trade button, the player will receive the item back, and the enchantment will be complete. You can only enchant one item at a time in the trade screen window. Players should not give you their items to have enchanted. It should only be done via the trade screen window, without actually trading the items.

Enchanting Supplies
Some required ingredients can be purchased from the enchanting supplier. They sell things such as copper rods, simple wood, star wood, and may also have some rare limited supply items.

Additional Information

You can continue to re-enchant the same item to skill-up but the item can only have one enchantment at a time.
Enchanting is a hardcore skill for hardcore players. It takes a lot of work and players should realize this before getting into it.
It's OK to "feed" enchanters with items. This is expected. Have all your guildmates and friends send you items that they don't need so they can be disenchanted.
Enchanters can only enchant weapons, gloves, boots, bracers, cloaks, shields, and chest pieces.
You can enchant anywhere, you don't need a special place to use your Profession like Blacksmiths do.
You can find additional enchanting recipes, called formulae, from hidden trainers or as drops from monsters. You can also get them from reputations.
Buy a formula at the auction house.
If you try to cast another enchantment on top of an existing enchantment, it will prompt you with a message asking if you want to overwrite the older enchantment.
Leatherworkers armor patches do not stack with enchants. You must decide which is more important to have.
If you close the disenchanting loot pane without looting the item, the Dust or Essence or Shard is automatically looted for you.
Enchanters can turn some of their dusts and shards into magical oils. These oils when applied to weapons add a temporary bonus to magical damage or mana regeneration that stacks with permanent enchantments. The lower levels of these recipes are found on normal enchanting vendors. The higher level versions are found on special vendors and are rewards for high Zandalar faction.
To learn expert Enchanting alliance players look for Lucan Cordell in Stormwind, Gimble Thistlefuzz in Ironforge, Xylinnia Starshine in Feralas Taladan in Darnassus. Horde players go to Teg Dawnstrider in Thunder Bluff, Godan in Orgrimmar, Lavinia Crowe in Undercity,
For Artisan Enchanting, Alliance players visit Kitta Firewind in Elwynn Forest in the Tower of Azora. Horde players must find Hagarth in Stonetalon Mountains.
For Master Enchanting, find Annora in the Uldaman instance.
Weapon Enchantment Colors: Some people like to get a particular color Enchantment on their weapons. Learn the colors of each weapon enchantment and market it accordingly.