In "Mountains Beyond Mountains," Tracy Kidder presents a riveting portrait of Dr. Paul Farmer, a man whose compassion and determination redefine what it means to make a difference in a world overwhelmed by disease and poverty. Growing up with humble beginnings, Farmer's unyielding quest leads him to become a pioneering infectious-disease specialist, a Harvard professor, and a global health revolutionary. Through Kidder's masterful storytelling, readers journey alongside Farmer from the halls of Harvard to the impoverished villages of Haiti, the slums of Peru, and beyond. This book is not merely a biography but a compelling call to action, showcasing Farmer's belief in the power of medicine and human kindness to change lives, one patient at a time. "Mountains Beyond Mountains" transcends the boundaries of traditional storytelling, weaving together the struggles and triumphs of Dr. Farmer's extraordinary life with the larger narrative of global health challenges. Kidder skillfully highlights Farmer's philosophy—that the true measure of a nation is humanity itself—and his relentless pursuit to cure the world, drawing support from an array of philanthropic giants including the Gates Foundation and George Soros. At its core, this book is about the enduring spirit of hope and the relentless pursuit of justice, illustrated by the Haitian proverb that gives the book its title: "Beyond mountains, there are mountains." As Farmer tackles each seemingly insurmountable challenge, Kidder invites readers to consider their own role in making the world a better place, one act of kindness at a time.