This is a quick Inscription Leveling 1-100 Guide for you.

First of all, Inscription has two parts, inscription, and milling.

The way Inscription works, is that you have to mill Flowers and Herbs to make Pigments. With the pigments you make inks. and with the inks, you use your inscription skill to make items like glyphs and spells.

One thing to note, is with milling, that when you mill your flowers and herbs, it requires it to be done in lots of 5, meaning you have to have at least 5 items in the stack to get going.

OK lets gets Started, you'll need around 5-10 Stacks of Peaceblosoms/silverleafs to get to 100, and a few stacks of mage royals.

1->20: Ivory Ink 20->35: Scroll Of Spirit 35->40: Scroll of Intellect 40->55: Moonglow Ink 55->60: Scroll Of Recall 60->75: Armor Vellum 75->80: Midnight Ink 80->100: Glyphs. 100+: When you get to lion's ink, you'll start getting burnt pigment as well, i would suggest you create the inks with them, and wait until the glyphs get up to using 2 lion's ink's each, and make some cards with them, that way you are saving some of your lion's ink's.

Now I have just put in glyphs, and not what type, they come in sets every 10-15 skill levels, so you can make any glyph in that set for the skill up, you can make them for your friend, or to sell in the AH, it's your choice, but that is the easiest way to get to 100 with Inscription, and it should only take you 15 minutes at most.