Leo Tolstoy began his trilogy, Childhood, Boyhood, Youth, in his early twenties. Although he would in his old age famously dismiss it as an 'awkward mixture of fact and fiction', generations of readers have not agreed, finding the novel to be a charming and insightful portrait of inner growth against the background of a world limned with extraordinary clarity, grace and color. Evident too in its brilliant account of a young person's emerging awareness of the world and of his place within it are many of the stances, techniques and themes that would come to full flower in the immortal War and...