Book excerpt: This book focuses on professional practice capability development in workplace contexts. It is built around the idea of workplace learning spaces being like crucibles in which many human, material and ephemeral factors are brought together through interactive exchanges of purpose and energy. A Crucible Model for Professional Development is presented and explored as a means for better understanding workplace learning as a place and vehicle for learning for professional practice. The power and potential for such learning spaces resembles the power of the apparently simple bowl of a crucible. However, when combined with the fire of enthusiasm for learning and teaching, and the rich learning resources and opportunities these settings can provide, the resultant catalytic reactions of professional growth and development can be both rewarding and outstanding. This book challenges contemporary models of workplace learning and their ability to develop a broad range of professional practice capabilities. The authors examine the nature and context of workplace learning in relation to capability development, explore the potential of the Crucible Model to enhance workplace learning and provide narratives of professional practice capability development in action. The discussions generate a range of implications and recommendations for workplace learning and capability development relevant to workplace learning educators and supervisors, academic educators, practitioners, students and those with the power to shape the future direction of workplace learning for professional practice. We invite you as readers of this book to consider the themes we have presented to reflect on your own experiences (whether as a student, workplace learning educator/supervisor, academic educator or a practitioner seeking to enhance your own capability development) to re-imagine workplace learning pedagogy and in so doing harness the potency of workplace learning experiences to develop professional practitioners capable of flourishing in and constructively contributing to 21st Century professional practice contexts.