The book "Observations of an Illinois Boy on the Field, Camp and Prisons—1861 to 1865" by Henry Harrison Eby tells the story of the author's life and service during the Civil War in the United States of America. This book allows readers to get a unique view of the events of that time through the eyes of a boy who grew up very quickly, faced with the brutality of battles, the hardships of life in the camp and the dangers of prison. An authentic account that helps to better understand the events of the Civil War and their impact on ordinary people.