Circuit training for the voice is a practice program designed to develop a stronger, more resilient, and healthier voice. It can be used in both speech therapy and voice coaching in individual and group lessons. Circuit training for the voice consists of a trainer's guide and a corresponding exercise booklet that can be directly used as therapy and teaching material. The starting point of the program is the idea that, just like in physical exercise, frequent repetition of the exercises is necessary for sustainable voice development. The trainer's guide initially presents the theoretical foundations and provides comprehensive background information for a well-founded voice treatment and training, followed by commentary on the individual exercises and numerous variations. The separate exercise booklet contains additional information.