Publisher : Alpha; Csm edition (August 3, 2010) Language : English Paperback : 224 pages ISBN-10 : 1615640320 ISBN-13 : 978-1615640324 Item Weight : 8.6 ounces Dimensions : 6 x 0.48 x 9 inches Best Sellers Rank : #4,716 in Books (See Top 100 in Books) #25 in Logic & Brain Teasers (Books) #35 in Puzzles (Books) #38 in Activity Books