Photographer Joshua Blackburn has visited all 462 launderettes in London. The resulting pictures are not just a portrait of a much-loved institution but of a city itself: full of life, colour, faded nostalgia and a whole load of dirty laundry.

Please note: the book features a selection of images from Joshua's collection, not all 462 launderettes. That would be a very fat book...

Joshua Blackburn is a London-based photographer, print maker and co-founder of The Artful Project gallery. In his previous life, he ran a graphic design agency for 14 years.