How do I change the mode of perspective? I'm working on a scene that, currently, is much more convenient when the view is.. not the correct perspective.
There's a word for this, but I have no idea how to phrase it and my tries to look it up has all come up with weird results. (usually directions on how to make your view point from a certain direction)
This has probably already been answered here, so please bear with me; I just cannot find anything that has to do with the problem I'm having.
I drew a photo to make it easy: (excuse my crappy mouse-drawing skills)

Thanks!
If this is what you're asking, you can switch from User Perspective to Orthographic by using the Numpad 5 key.  The perspective type is given in the upper left hand corner of the 3D view.

The differences can be found here: What are the differences between Orthographic and Perspective views?

Essentially, Orthographic is a "non-real-world" view in which all dimensions have the same scale... i.e. objects that are farther away appear to be the same size as objects that are near-field.