Synopsis Teaching is an art required for imparting education effectively and educationists have been working and experimenting continuously to find out new and effective methods of teaching. Willingness of teachers to enhance their skill and efficiency compell them to adopt modern effective methods of teaching. This encyclopaedia has been designed keeping in mind the contemporary developments of science, technology as well as the use of computers involved in teaching process. Because total teaching process has changed due to said advancements. Conventional methods and ways of teaching have become obsolete. For imparting quality education we have to adopt modern and easily understandable methods of teaching. Present encyclopaedia in eight volumes will prove its worth among already existing works. It has been worked out keeping in view the changes taken place with turn of time and contemporary scientific and technological developments. Material contained has been collected from latest authentic sources. This encyclopaedia will be of immense use and prove itself most dependable authentic reference to educationists, teachers, students, teacher trainers and all concerned.