This celebration volume is to honour a prominent Pentecostal theological and educator, Russell P. Spittler. As much of his research has been devoted to the area of Pentecostal spirituality, the essays collected in this volume contain studies in this field. The contributions are divided into three areas of Pentecostal spirituality: theological, historical and missiological. While the Pentecostal movement has tremendously impacted Christianity in the past century and expects to continue its rapid growth, very little scholarly research is available on this important movement. This volume, then, provides an important resource for pastors, seminarians and scholars.