The Blue's Clues Discovery Series Lot of 4 Books includes titles 3, 8, 10, and 11, published by Viacom in 2000. These hardcover books are part of the Blue's Clues: Discovery Ser., featuring a mix of fiction and non-fiction content suitable for ages 2-8. The books are illustrated in English and focus on various topics related to animals and dogs, making them an engaging choice for young readers. Each book in the lot offers a unique narrative and educational aspect, making this collection a valuable addition to any child's bookshelf.i have a Blues clues, hardcover that is bound with thread of which 2 out of the 4 are week .I will add it if you want it .you are buying the 4 in title.