April Sky has experience working with clients who use the online bookstore. allows you to upload a PDF of a designed book, and they will sell it by printing-on-demand whenever somebody orders the book. This option suits many of those who want to reduce the risk associated with capital outlay. April Sky has helped a number of clients who wish to print their books in this way. We understand how works and can turn your book into a set of customised files for upload that are fully compatible with the Lulu systems.