Celebrate the 20th Anniversary of the I Spy series with I SPY SPECTACULAR! 20 years ago, Jean Marzollo and Walter Wick created the first title in their bestselling I Spy series, I SPY: A BOOK OF PICTURE RIDDLES. Now you can celebrate that 20th Anniversary with I SPY SPECTACULAR! New riddles from Jean Marzollo are paired with 13 of Walter Wick's photographs from the classic I Spy vault to create a spectacular search-and-find. I SPY SPECTACULAR features a special anniversary section, including the history of the first I Spy book and its creators, that is truly spectacular!