Editing

Editing involves transition of image and sound, continuity and non-continuity systems, cutting, jump cut, crosscutting, parallel editing, cutaway, insert, dissolves, fade-in, fade-out, wipe, long take, short take, slow motion and much more.

You can edit language, images, or sound through correction, condensation, organization, and other modifications in media. Film editing is in a way, storytelling. This is created by joining two or more shots together to form a sequence, once all the shots have been joined together a film is made.

Film editing is unique to cinema, however there are similarites to editing in other artisitic areas e.g. novel writing. Film Editing is often referred to as the "invisible art," this is because, if it is done well, you don’t even notcie th work of the editor.

However, the job of an editor isn’t just to mechanically put pieces of a film together, it is also to work with the layers of images, the story, the music, the rhythm, the pace, shapes the actors' performances, "re-directing" and often re-writing the film.
I very shortly looked at some editing myself in school, and found it quite tricky. I think this is mainly because you have to syncronize lots of different shots and angles with one camera.