In "On Trails," Robert Moor embarks on a profound exploration of pathways, both literal and metaphorical, weaving a narrative that traverses the Appalachian Trail and spans the globe. His quest begins with a simple curiosity about the trails beneath our feet, a question that propels him into a seven-year journey through the wilderness of nature, history, and the human spirit. Moor delves deep into the essence of trails—how they come to be, evolve, and influence the course of life on Earth. From the microscopic tracks of ancient organisms to the sprawling web of the internet, he examines the paths that connect the world in unseen ways, guided by the wisdom of trailblazers, historians, and philosophers. Through his eyes, readers embark on a journey that transcends the mere act of following a trail, inviting them to ponder the meaning of our journey through life and the choices that define our paths. With a storyteller's grace and a philosopher's insight, Moor transforms an ordinary subject into a canvas for exploring the most intricate aspects of existence. "On Trails" is not just about the physical trails we tread but about the journey of life itself—how we navigate the unknown, create connections, and find meaning in the world around us. By intertwining personal anecdotes with scientific research and historical narratives, Moor crafts a compelling tale that encourages readers to reflect on their own paths, both taken and untaken. This book is a celebration of the trail as a symbol of discovery, evolution, and the perpetual quest for understanding, making us see our surroundings, and ourselves, in a new light.