You may not realise it but your favourite number isn’t four, or seven, or 42. It’s three. Three is everyone else’s favourite number too, and you can use this simple truth to add punch to anything you write, from an email to a book.
There’s something magical about three. Pythagoras, who knew a thing or two about three-sided shapes, called three ‘the perfect number’. In Latin there was a saying – omne trium perfectum – which translates as ‘everything that comes in threes is perfect’.