This document discusses the development and importance of training materials. It explains that training materials facilitate learning and contribute to the success of training programs by allowing trainees to adopt new skills, knowledge, and technologies. It also lists some key benefits of training materials such as facilitating understanding, stimulating participation, and preventing monotony. The document then outlines the typical parts of a training design, including the rationale, objectives, course content, methodology, participants, duration and site, responsibilities, financing, evaluation, and follow-up.