To add the glyph, stand next to a Lexicon of Power, right click on the glyph in your inventory. Your glyph menu will open. Now left click on the circle where you wish to add the glyph, large circles for major glyphs and small circles for the minor ones. Glyphs are unique. You can only have one of each type equipped.
Scribes are not limited to making glyphs, however. They can make a number of additional items as well. These include certificates of ownership, off-hands, scrolls, vellum and tarot cards.
Certificates of ownerships are items created for hunters. They allow a hunter to change the name of his or her pet. There is a seven day cool-down on this item. This is not for use on the non-combat companions that can be owned by any player.
Scribes can now make scrolls. Where once players had to depend on drops or fishing up the item to obtain a scroll, now they can contact their favorite scribe. With Echoes of Doom, scrolls up to level 6 can be made for Agility, Intellect, Spirit, Stamina and Strength. When Wrath of the Lich King is released, Scribes will be able to make Scrolls up to level 8.
Good news for Enchanters: No longer do you need to hang in a major city and spam Trade to sell your enchants. Scribes can make vellum. Enchanters can buy vellum and place an enchant on it for later use. These enchanted vellums can be traded or sold to others, placed on the Auction house or mailed to another character.
Scribes can create Tarot cards, which start quests. While the tarot cards created can be traded to anyone, only Inscribers can use the decks, which start the quests. Higher-level scribes will be able to make standard Darkmoon cards, such as a Two of Portals. These cards can be traded and sold.
Scribes can also make a number of off-hand items for their own use. This will surely increase the value of single-handed weapons. Now a scribe can have a library of tomes from which to choose. This will give a player with the inscription profession the option of swapping out a book that gives Intellect, Spell Power and Critical Strike for one that adds +20 to your Fire Resistance when a certain fight demands it.
Another scribe-only benefit from Inscription is the ability to make and use Scrolls of Recall. These, in a sense, act as an additional hearthstone returning the user to the inn to which they are bound. One must use an appropriate level Scroll of Recall, however, or suffer unpredictable results. Level I SoR are accurate to level 40. Level II SoR are unpredictable past level 70. Level III SoR should be reliable to level 80.
Scribes can also make and use Master of Inscription items. These are similar to shoulder enchants, as they can be added to a scribe's shoulder armor to enhance that piece. These do not stack with shoulder enchants.
Be sure to explore the many aspects this new profession brings to World of Warcraft. An excellent site to visit for information on all things Inscription is El's Professions. Find the information on Inscription at: http://www.elsprofessions.com/inscription/.