Sesame Subjects: My First Book about the Five Senses is a 2006 Sesame Street book in which Professor Grover teaches Elmo about the five senses and how important they are. The book begins with an explanation of the brain. It discusses how to take care of it and how information received from the five senses is processed by the brain. It then describes each of the five senses in detail and gives some examples of the ways they are used.