Fleeing violence and poverty, hundreds of Central Americans cross the US-Mexico border into Texas every day. The US government spends billions of dollars each year trying to keep them out, or deporting those the border patrol apprehends. The journey north is dangerous and gruelling. Many of those trying to make it into the US do not survive - abandoned in the rugged border terrain by people smugglers, at risk of sexual violence and death.
When John Cyr set out to photograph the tools of the darkroom he discovered in himself something unexpected - a passion to capture the chemical fingerprints of some of the world's greatest photographers.
His book Developer Trays documents dozens of simple trays textured by each user's unique chemical process. Discolored, scratched or pristine, each tray is an artIfact of an artist at work.
Photographed with a museum catalogue level of precision and beauty, every image reflects Cyr's deep respect for the darkroom process - a process rapidly disappearing with the advance of digital photography and ink jet printing.
Produced for the BBC by Jennifer Hamblett and Lisa Rinehart
Picture This is a series of video features published every Thursday on the BBC News website which illustrate interviews with authors about their new books.
A story of how a strange sculpture in the West Texan desert brought curiosity, art, fashion and the barren west American landscape together.
Produced by Jennifer Hamblett. Assistant Producer, Jorge Baron Munoz.