Arguably, hearing and sight play the most significant roles in gathering information about one’s environment. Without these, it would be near impossible to figure out what was going on outside of one’s mind - save that which may be gathered through taste and touch. Based on solid scientific research and using easy-to-understand visuals and illustrations, this DVD explains how the eyes and ears are structured and underlines their significance in communication. Designed in an age when the science of audio-visual communication devises was still in its prime, the clips on this DVD offer a rare glimpse of the tremendous advancements scientists were making in this field. Graphics and other illustrations used here may certainly have been a thrilling treat for viewers then, as they are today, though for different reasons. The clip showing how sound was recorded on motion picture films is especially edifying and although this science has reached heights not imagined in those days, this is an excellent reminder of how it all began. This is a fascinating collection of educational films with a historic value and is a priceless addition to any collection. I have no doubts that these clips will prove to be just as invaluable to a student today as they were over half a century ago!