That is another of our frequently asked questions. You need to know how to make PDFs and package your files for prepress. Please see our prepress guide for instructions. Place the files on DropBox and “share” with us, via email. You can email PDFs if they are not too large for the server. You can burn files to DVD and CD, and send files to us. The book files can be put on our FTP site. Contact us for our FTP address, user ID, and password.