"A Letter to the Bishop of Exeter" is a letter of appeal written by Edward Hall Alderson, who appeals to the Bishop of Exeter for help in solving an important problem. In his letter, the author communicates about social and moral issues that concern society, demonstrating a deep understanding of the problem and the ability to express his thoughts through a literary form. This book is not only a literary work, but also an important document that raises current issues and calls for action to change society for the better.