While collections of first person narratives can sometimes be dry, when collected and edited carefully they offer insights into history that are more likely to connect with readers as personal experiences. This book would be an excellent research tool for amateur historians, civil war or military buffs and as an introduction to the realities of war for classroom use on suggested reading lists.
Anyone considering visiting the battlefield of Gettysburg can prepare themselves, even if only slightly, for the unsettling experience of feelings that emanate from that death shrouded ground. I highly recommend both the book and a visit.
There are similar volumes, some with more editorial narrative (see Max Hastings on WWII for example), regarding many political, social, historical, military and even economic studies that can aid the reader to connect with global and American history, they all deserve serious attention.