I take it that you are asking this because you see in the Recipes Partial, Multiple, All Grain.
Partial - a partial mash
Multiple - recipe is given in All Grain and Extract
All Grain - simply the All Grain recipe
Here is a link that teaches the different methods of mashing. I hope this helps
Drinking - Highland Gaelic Ale Clone
Primary - Highrise IPA
Up Next - None More Black Vanilla Stout, Heady Topper Clone (if I can find a recipe)