""Some Unpublished Letters of Henry D. and Sophia E. Thoreau: A Chapter in the History of a Stillborn Book"" is a collection of letters written by the famous American author and philosopher, Henry David Thoreau, and his sister, Sophia, which were never before published. These letters provide insight into the personal lives of the Thoreau family and their literary pursuits. The book sheds light on the process of writing and publishing during the mid-19th...