Glenda Millard's 'Once a Shepherd' is a beautifully crafted, concise historical fiction piece that gently introduces young readers to the somber realities of World War I. The story follows Tom Shepherd, who leaves his sweetheart to fight, touching upon themes of love, sacrifice, and the longing for peace. It handles the sensitive topic of war and implied death with metaphor and tenderness, making it accessible for children aged 4-11. The emotional arc is poignant and bittersweet, starting with separation and ending with a quiet reflection on remembrance and hope. This book is ideal for a child asking about historical conflicts or experiencing separation, providing comfort and a starting point for discussion. Parents should be prepared to discuss the concepts of war and loss, as the book serves as an excellent conversation starter about history and empathy. Its brevity and lyrical quality make it a unique offering among children's war literature.