Possible Definition: It's stuff that help teaches you stuff with the intention of teaching you stuff (I say this because you can learn from anything, such as sketch art, however for the most part tutorials have the intent of teaching you step by step). Note: I decided that it would be best to put all the tutorials in the same boat (as it were), rather than in the "Concept Art" folder, because it seems that almost every single thing that has a combination of different things (like a combination of Sketch Art, Line Art, Tone Art, Color Art) tend to be for a tutorial or concept art, however it is just as likely that it's not a concept art or tutorial, but something entirely different (in which case I may need to make a new folder or figure out what to do with it, perhaps place it in the "Concept Art" folder... or "Tutorials" folder.)