It's been a good week for photography on the BBC. We've been treated to not one but two good documentaries as part of the Imagine series.
Firstly 'Vivian Maier: Who Took Nanny's Pictures?' – The incredible story of a mysterious nanny who died in 2009 leaving behind a secret hoard - thousands of stunning photographs. Never seen in her lifetime, they were found by chance in a Chicago storage locker and auctioned off cheaply.
Secondly 'McCullin' – A powerful documentary portrait of legendary British war photographer and photojournalist Don McCullin.
Beware though, although the photography featured is astounding, each is quite depressing in it's own right.