Lulu is the leading online book publishing site that allows anyone to create, publish, distribute and print a book. Lulu Publication API allows individuals and publishers to use Lulu's open publishing platform to upload and publish books in any format (paperback, hardcover, eBook), get free ISBNs, print a demand and sell on Lulu.com and a growing list of retail channels including Apple's iBookstore, Amazon, eBay, and more.