Home Book Nook Development Book Nook Development Links to Current Book Nook lists: Early Elementary (Pre-K – 3)Middle Grades (4 – 8)Young Adult (9+)Adults and Parents Book Nook Title*AuthorDescriptionCover ImageMax. file size: 100 MB.Purchase Link Age Category*Early Elementary (Pre-K – 3)Middle Grades (4 – 8)Young Adult (9+)Adults and Parents