多种非营利组织或非营利组织，存在的所有世界各地。学生常常学习如何为国家和缺乏基本医疗保健的选择和治疗的社区，而其他学生学习如何提供食物和住所，以逃避战争和破坏的难民。

Courses are academic classes taught by qualified instructors that are intended to enhance participant’s knowledge of a given area or training in a particular discipline. Courses vary broadly in terms of length, size, content and duration.