A well-functioning voice is part of the professional skills needed in many occupations. Although voice is an important communication tool, it is more than that: it is something which reflects human identity. The need for speech and voice is growing in spite of increasing technology applications; even instruments and technical equipment are guided by voice. The number of people having voice problems is increasing, which implies that voice does not always function according to the speakers' needs. Voice ergonomics has been developed for improving voice health and care. This book offers background knowledge and concrete guidelines on how to improve communication environments and practices for decreasing voice loading.