IT IS DAUNTING to write a biography of Tolstoy. Hundreds or even thousands of books have already put each detail of his life and work under a microscope, and the archives contain no more hidden treasures. Yet, new interpretations of Tolstoy’s life continue to pour in, with more expected in the run-up to the writer’s 200th birthday in 2028. One of the most immediately obvious advantages of Andrei Zorin’s Leo Tolstoy is its brevity. And I don’t mean this as a backhanded compliment. While other biographies tend to compete with the author’s greatest novels in length, this medium-format book of roughly 200 pages will be welcomed by those who want to learn more about the legendary Russian writer without a major time commitment.