Previews serve as significant marketing tools for your content. They allow your potential customers to listen, see, or read a little sample of your work before buying it. It's the same as putting on headphones in the record store and listening to music or thumbing through a book at the bookstore. The maximum file size for previews is 2MB.
Book previews are excerpts from your book. At Lulu, customers can view images of the pages in your book as they appear in the printed version. We automatically generate previews for all newly published books as well as new revisions. The number of pages in this preview depends on the size of the book, but the automatically generated preview is fewer than 10 pages.
You may have noticed that thumbnail images of the monthly pictures decorate the back cover of a calendar sold in a bookstore. Many customers like to see all the images in a calendar before purchasing it. We suggest uploading a PDF or a single image file containing small versions of all your calendar images.