Duke the Deaf dog learns that some noises are loud and some are quiet. Whether it's a tapping crayon, a beeping fire drill, or a crinkly candy wrapper, both parents and children alike will understand the need to know the difference between noises. A fun, engaging way to teach children that some noises are not polite. Bonus American Sign Language material inside: Learn 12 ASL signs within the story. Learn Rules of Etiquette in Deaf Communities. Watch the Deaf Culture lesson, vocabulary words, and the complete story signed on video using the link provided in the book. Watch a deaf parent sign the Farts Make Noise story on video using the link provided in the book.