Dickens gave his first formal expression to his Christmas thoughts in his series of small books, the first of which was the famous "Christmas Carol." There followed four others: "The Chimes," "The Cricket on the Hearth," "The Battle of Life," and "The Haunted Man." The five are known today as the "Christmas Books." Of them all the "Carol" is the best known and loved, and "The Cricket on the Hearth," although third in the series, is perhaps next in popularity, and is especially familiar to Americans through Joseph Jefferson's characterisation of Caleb Plummer.