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           LZW compression can be explained with the metaphor of colour-mixing: we use 2 old colours and mix it to make a new colour. Similarly, LZW compression takes 2 available entries and combines them into one new entry.             By doing so, not only do we have more colours or more entries, it is much faster to use combined colours or entries as it eliminates repetitiveness. For example, instead of mixing blue and red every time you need purple, you mix it all at once into one big can so you will always use the can of new paint to colour your picture; instead of separately coding two letters, you can combine the two letters into one to represent the data.

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