On July 4, 1845, Henry David Thoreau moved into the cabin he had built on the shore of Walden Pond, thus beginning the most famous experiment in simple living in American history. On the 150th anniversary of that event, Houghton Mifflin, successor to Thoreau's original publisher, is proud to publish a new edition of Walden, annotated by the distinguished Thoreau scholar Walter Harding and illustrated with Thoreau's own drawings. Even those who have read Walden many times will find much that is new in this edition, and those reading the book for the first time will discover why it has changed the lives of generations of readers.