I've written about Niall McDiarmid's Crossing Paths project before. In early 2011, he began taking portraits of people he met as he travelled across Britain. In three years he photographed more than 800 people, travelled over 50,000 miles and stopped at more than 120 towns across England, Scotland and Wales. He has now published his book of the project, available through his Crossing Paths website.
As a sourcebook of early 21st century style and character in an increasingly diverse UK, it's invaluable. Read more about Niall McDiarmid here.
