Write short notes on Word Cloud.

A Word Cloud is a visual representation of text data, displaying words in varying sizes based on their frequency or importance. The more frequently a word appears in the text, the larger it appears in the word cloud. The words often appear bolder or follow a specific colour scheme according to their frequency. Word clouds are used to summarise and visualise textual information, making it easy to identify key themes, topics or keywords. They are commonly utilised in fields such as data analysis, market research and content visualisation.