Understanding human emotions can be difficult! Did you know that the human face has about 43 muscles? All of these muscles work together to form expressions that let us know how people are feeling. Some people immediately figure out which muscle combinations are connected to specific feelings. Other people learn to read the human face and look at body language clues to figure it out These people look for clues and other signs, just like detectives! This feeling detective book can help you learn to find the clues about how people are feeling!