Portrait of Britain

Portrait of Britain is an annual British portrait photography competition run by the "British Journal of Photography." Its subject is the diversity of British people. The 100 winning portraits are displayed on JCDecaux's digital screens across Britain throughout the month of September. It launched in 2016.
In 2018 an eponymously titled book was published with 200 of the shortlisted portraits.
Details.
The competition's subject is the diversity of British people "and the way their narratives reflect its widely unstable political and social landscape." It was partly inspired by Brexit.
It is open to anyone to enter but photographs must have been taken within the previous six years and "depict subjects living in the UK (England, Scotland, Wales & Northern Ireland) at the time of the photograph."
The 100 winning portraits are displayed on the outdoor advertising company JCDecaux's digital screens located in railway stations, shopping centers, bus stops and high streets. Each image appears on each screen for five to ten seconds.
The competition ran in September 2016, September 2017 and September 2018.