I just published an ebook on Amazon but the problem is that when people go to "sample" the book it only shows them the cover page and publishing info. Is there any way for an author to extend the preview of his/her book by a page or two?
Amazon shows the first 10%. If all the preview shows is front matter, you either have too much front matter or too little content. To fix it, reduce or remove the front matter (or move it to the end of the book) or add more content to make the book longer.