In 1978, at the age of 67, Zofia Rydet set out on a mammoth task – she wanted to photograph the inside of every Polish household. Rydet was nothing if not obsessive: she once said ‘I need to take photos immediately – it’s like an addiction, like vodka for an alcoholic’. True to form, she worked on the remarkable set of pictures right up to her death in 1997, taking 20,000 in all