Cover of Running While Black byAlison Mariella Desir. Penguin Random House hide caption toggle caption Penguin Random House Cover of Running While Black byAlison Mariella Desir. Penguin Random House Runners are skinny white people. This was what Alison Mariella Désir thought until she came across a social media post from a friend, a 200-pound Black man, who was training for his first marathon. Looking for a way to break through a persistent bout of depression, she signed up for a marathon as well. Much to her surprise, after 16 weeks of training with a Leukemia & Lymphoma Society running club in Manhattan’s Central Park, Désir completed the race. And from…