Book Trailer:

There is only so much marketing copy you can write about your book before you have saturated your target audience. But in one minute or less, you can tap into the visual, auditory, and emotional senses of your potential reader with a book trailer. A book trailer is designed to get the buzz going, driving sales and increased interest. 

Samples:

 Hope: A Bridge Above an Ocean of Doubt: A Memoir by Karen Dyser 

Mother Earth, Brother Sun Sister Moon by Kevin O’Dell