"About 10 years ago we started sending each other images, back and forth, via email. Each photograph had to respond to the one just received. We have so far exchanged over 260 photographs, sharing snippets of family life, abstraction, travels, loss and humor. When we started, we had no particular plan but rather we were curious about the idea of photography as dialogue and we wanted to see how our visual conversation would develop. A similar sense of open-ended inquiry informs this special issue which does not present a single resolved idea but explores the emergent, messy and indeterminate ways that images and image-making serve to facilitate – and obscure – dialogue. It is concerned with the potential and limits of photography as a dialogical medium and proposes an idea of dialogic photography that centres around the encounters, exchanges and negotiations that happen with, through and around images." (Abstract)