"A 22-volume, highly illustrated, A-Z general encyclopedia for all ages, featuring sections on how to use World Book, other research aids, pronunciation key, a student guide to better writing, speaking, and research skills, and comprehensive index"--Provided by publisher.
Highlighting the 2009 edition are new and expanded articles on global warming, Darfur, Kosovo, blog, Sudoku, organic food, Bono, Jay-Z, Johnny Depp, Tony Hawk, among many other topics, as well as results of the U.S. presidential election and the 2008 Olympic Games. Features include: more than 27,500 rich-photographs and illustrations; articles contributed by more than 3,800 contributors, all experts in their field; research aids; pronunciation key; a student guide to better writing, speaking, and research skills; and a comprehensive index.