For your book trailers, all images must be Creative Commons Licensed and credited.

Creative Commons (CC) is a non-profit organization devoted to expanding the range of creativeworks available for others to build upon legally and to share.[1] The organization has released several copyrightlicenses known as Creative Commons licenses. These licenses allow creators to communicate which rights they reserve, and which rights they waive for the benefit of recipients or other creators. – source: Wikipedia

To find CC licensed images, video, and music, start by using these sites and looking for the correct license next to each media example.
You may NOT use another search engine until you have used these first. We will discuss it more later.

Can't find what you're looking for? Try a search.