Most people who survive a dramatic ordeal, narrowly avoiding death, are familiar with the urge to thank someone. 'Useful Photography #017 is dedicated to such expressions of gratitude via the form of ex-votos. Frank Kouws discovered a santuary in Italy where the walls are covered in ex-votos, small framed collages, each featuring snapshots of wrecked vehicles and the survivors alongside their handwritten declarations of devotion and thanks.