This book is meant to be a handy resource for students enrolled in Undergraduate and Postgraduate vocational programs. It provides recommended recommendations for explaining the ideas that are emphasised in the course material. The notes used to teach communications in a Science and Technology College in C.G., India, served as the inspiration for this book. There were no textbooks available at that level at the time. An Indian text was published as the demand for this course increased. This material was produced shortly after, mostly for pupils in Chhattisgarh.