I have been a big fan of Martien Mulder's work. A few months ago when TRUNK ARCHIVE did their month of animals on instagram, there was one image of Derek Blasberg's dachshund that made me contact Martien immediately and see if she had any other treasures to share.
As Martien would say, "I don't have a dog..I wish! These are either my friends' dogs that I love spending time with, or dogs that I encountered in the streets. I just always notice dogs and I connect with them. I love observing them with my camera, figuring out what they are up to."