Encoding and retrieval are essential to the workings of the memory, and the fact that there are two main kinds of memory – short term and long term – is significant. Short term memory holds information for fairly short intervals, whereas long term memory stores information for a far longer amount of time. The relationship between both, as some Psychologists claim, is envisaged by stage theory. When information is encoded, it is stored in short term memory. It must remain there for a long time in order for it to be finally stored in long term memory. The means for retaining it in short t