There are a few smaller versions of the "Britannica" encyclopedias. The "Britannica Concise Encyclopædia", written in one book, has 28,000 shorter articles. "Compton's by Britannica," published in 2007, with the old "Compton's Encyclopedia," in it is written for teenagers who are 10–17 years old and has 26 books and 11,000 pages in it. A "Children's Britannica" was published by the company in 1960; this was edited by John Armitage and written for His Royal Highness the Prince of Wales; the writers were almost all British. Other books are "My First Britannica", written for children who are six to twelve years old, and the "Britannica Discovery Library", written for children who are three to six years old (issued in 1974 to 1991). Since 1938, Encyclopædia Britannica, Inc. has published a "Book of the Year" every year, with information about the past year's events, which is written online since the 1994 edition (with the events of 1993). The company also publishes a few books on special topics, such as "Shakespeare: The Essential Guide to the Life and Works of the Bard" (Wiley, 2006).