What is Plain English?
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Word Centre

Abstract:

Over the last two decades, a ‘culture of clarity’ has been gaining ground in many large organisations around the English-speaking world. In the United Kingdom, government departments, banks, insurance companies, local councils and others have come to realise that clear communication is actually a good idea. Instead of writing to impress or confuse, they are now writing to inform and explain. They are using plain English to do this.