In the spirit of Tracy Kidder's Mountains Beyond Mountains, and joining the ranks of works by Bryan Stevenson, Matthew Desmond, Abraham Verghese and Oliver Sachs, the inspiring story of a young American neurologist's struggle to make a difference in Haiti by treating one patient a story of social justice, clashing cultures, and what it means to treat strangers as members of our family.Dr. Aaron Berkowitz, a well-meaning Harvard Medical School neurologist, became a doctor to build bridges between a very rich world and a very poor one. But his idealism was tested when he traveled to Haiti to treat some of the world's neediest patients. One by One by One is the poignant chronicle of the ups and downs, the reverses and triumphs Dr. Berkowitz experienced trying to accomplish his dream. It is the story of his attempt to make the first big save of his career: a desperately poor young patient from rural Haiti named Janel who had the largest brain tumor any neurosurgeon at a major Harvard teaching hospital had ever seen. My naive optimism as a novice humanitarian physician was shattered at every twist and turn as I faced countless unexpected medical, logistical, and psychosocial challenges, he writes. Forming a special bond with Janel, whom he brings back to Boston to treat, he experiences the tensions between his world and Janel's, as they move between the modern technology of Harvard Medical School and the shanties and clinics of Haiti. It is a journey fraught with deprivation and frustration yet enriched by the support of generous and brilliant friends and colleagues. Throughout, Dr. Berkowitz confronts ethical questions: How can a doctor advocate for the expense of treating just one patient when that money can be used to care for so many others in need? How are the challenges of medical care complicated by class, wealth, culture, language, and race? What are the unintended consequences that can result from even the best of intentions? Powerful and thought-provoking, One by One by One offers invaluable lessons for everyone who wants to make a difference and a reminder that we must choose carefully which good actions to take on.