The Media Pool is used for managing all media files of a project, e.g. picture, audio, video and text files. Moreover, it also contains a few other things that are import for editing your project, e.g. presets, screens and timelines or devices and trigger actions for Show Control.
Viewing and listing to media files
Structuring and ordering Media Pool contents
Sorting images on the light box
Using pre-defined key frame effects
Using predefined picture effects