How do you go about ranking the richest people in the country? The answer, it seems, is patiently trawling through Companies House documents and using a huge network of people to measure identifiable wealth, whether that be land, property, racehorses or art.
According to Robert Watts, the man responsible for compiling the 2023 Sunday Times Rich List, people are actually quite keen to see their names in black and white and it's been known for some to send a bank balance in the hundreds of thousands of pounds on their smart phones as evidence of their wealth.
On the flip side of that, there are individuals who'd rather stay anonymous: "There are certainly people who want that anonymity and don't want us to do what we do," said Mr Watts. Yet he believes his work has an important role: "We think it's very important in a functioning democracy that it's known where wealth lies and where it's accumulated," he added.
