See here

To share a book or a disc or a file: Look! See! Listen! Do you know what this object is? It is the finished product of so much work, these few hundred pages of story, this half-hour of music, this 90-minute film — someone had a story to tell, an argument to make, a desire to inspire and encourage and motivate, and here is what they created. Now dropped into a pile or stacked lovingly on a shelf, each of these objects is a time bomb waiting to be rediscovered and set off again in a willing br...