In 1861, Lt. Col. William Hoffman was appointed to the post of commissary general of prisoners and urged to find a suitable site for the construction of what was expected to be the Union&́#x80;s sole military prison. After inspecting four islands in Lake Erie, Hoffman came upon one in Sandusky Bay known as Johnson&́#x80;s Island. With a large amount of fallen timber, forty acres of cleared land, and its proximity to Sandusky, Ohio, Johnson&́#x80;s Island seemed the ideal location for the Union&́#x80;s purpose. By the following spring, Johnson&́#x80;s Island prison was born. Johnson&́#x80;s Island tells the story of the camp from its planning stages until the end of the war. Because the facility housed only officers, several literate diary keepers were on hand; author Roger Pickenpaugh draws on their accounts, along with prison records, to provide a fascinating depiction of day-to-day life. Hunger, boredom, harsh conditions, and few luxuries were all the prisoners knew until the end of the war, when at last parts of Johnson&́#x80;s Island were auctioned off, the post was ordered abandoned, and the island was mustered out of service. There has not been a book dedicated to Johnson&́#x80;s Island since 1965. Roger Pickenpaugh presents an eloquent and knowledgeable overview of a prison that played a tremendous role in the lives of countless soldiers. It is a book sure to interest Civil War buffs and scholars alike.