This book has been written with several objectives, the most important being to make it a very useful textbook not only for the students of B.Ed. and M.Ed. courses, but also for Educational Technologists. This book lists the various aids at the teachers? disposal and I have put forth the best of my abilities to make it as simple as possible. Also certain hints are given on class management and organization appropriate to the most effective use of audio visual aids.

This book has also been written with an intention to make the teacher know about the varied types of audio-visual aids, the principles underlying the use of these aids, what type of aid will be most useful to him/her for particular purpose, where to obtain it, how prepare it, and to maintain it.