In sheer numbers alone, the scale of Syria's humanitarian crisis is difficult to grasp: a third of the country's 22.5 million people have abandoned their homes; 10 percent have fled the country, including more than one million children. As we describe in our article in The New York Review of Books, however, the crisis has also been hard to understand because the Syrians who have fled are dispersed in hundreds of villages, towns, and cities across the region. These photographs, taken during our reporting for the story, show some of the many different situations we encountered among Syrian refugees in Jordan, Turkey, Lebanon, and Iraq.