Broadening the Circle is more than a celebration and history of The Voice Foundation: indeed, it might be argued that it is, truly, the 'state of the art' (and the science!). Here is a fascinating and illuminating chronicle of the development of the science and art of voice, told by the scientists, teachers, speech-language pathologists, otolaryngologists, and voice performers who have influenced - and continue to influence - this still-new and developing science built around the complexities of the human voice. This book serves as something of a reality check. There is practical information about breathing, resonance, and belting, along with a detailed list of what needs to be clarified or studied further in the lab. The discipline as we now know it is so young and there is so much unknown, that even those professionals that have been teaching and researching, in some cases for many decades, have barely begun to scratch the surface: they are still pioneers. It is truly exciting how open this field is. These next decades offer so much in the way of opportunity and advancement, and there can be no doubt that The Voice Foundation will be at the forefront in promoting and leading the field.