This practical course is designed for those involved in all aspects of well stimulation. To be better able to make decisions it is important to have a basic understanding of the types of formations and basic reservoir properties with which we deal. The course includes acidizing and fracturing quality control, conducting the treatment, monitoring pressures, and other critical parameters, during and after the treatment. An important part of the course is class teamwork whereby the attendees divide into teams to evaluate and design stimulation treatments. These exercises bring out many important parameters discussed during the course.