156 pages of fun! Explore emotions with Buster. Buster is sometimes silly, sometimes sad, and sometimes mad, but mostly he is happy. Perfect for ages 6 months to 6 years.In this Big Book edition, we've included the story in full and standard editions, fun extras that allow children to meet the critters and explore Bugville, and over 75 flash cards for practicing the words used in the story.The flash cards are organized into 6 different word sets for easier learning and contain sight words, wall words, and vocabulary words.