This WHO module covers essential aspects of malaria entomology and vector control. It is multipurpose as the depth and selection of learning units depends on the background of the audience and learning objectives. It can be used to train field vector control workers, laboratory technicians, or health workers working in malaria vector control programmes at different levels. It can be used to train those operating at national and district malaria (vector) control programmes with responsibility for planning, implementation monitoring and evaluation of vector control activities. The module consists of two parts: the Learner's guide; and the Tutor's guide.