"Free Air" is a travel novel by Lewis Sinclair, which inspires a fresh breath of freedom and nobility. The main character, Mitred Ferrell, embarks on her own road trip from the East Coast to the West in search of independence, authenticity and new experiences. During the trip, she meets various people, gets to know the real America and discovers the beauty and diversity of landscapes and cultures. Interweaving moments of humor, reflections on the essence of life, and moving impressions of the infinite space of the surrounding world, this book will leave you engrossed until the last page. "Free Air" is not just a travel story, it is a story about finding yourself and your place in this big world.