The book reviews in this winter 2024 issue of the Civil War Book Review emphasize the role of the environment during the Civil War Era. While our two feature essays take us out of the realm of environmental history and into the world of politics, the primary focus of this winter issue is the role of nature in history. In recent years, historians have added to our knowledge of the environment’s role in the past. Nowhere is this more clear than in the Civil War Era. As historian Stephen Berry explained, “Like the Columbian Exchange, the Civil War was a massive stir of the biotic soup, and in many ways that stir, more than the battles themselves, was the real story of the war.” Each of the scholarly works reviewed in this issue expound on Berry’s point, reminding us that the environment was not merely a backdrop to historical events. It was an active participant, a force of imagination, and a vehicle and recipient of change.