For a publisher in inspirational books Joost created a magnificent book concept that kills two birds with a stone. The idea – originally developed for life coach Bob Proctor – is as follows. Say you would like to publish a book with 99 motivational stories. You simply invite your clients to become co-authors with you. They write their own life shifting tale and you can promise them they will get their own customized copy of your book with their story in it! Modern printing techniques allow for individual books to be printed in small editions. Each client will buy his own set of books for friends, family or other relations. Success goes both ways. Your client will be proud and happy to have been published in an inspirational book and you will be able to sell much more copies than in the old-fashioned way! Joost made an app for this book concept, that is easy to use for both the authors and the publisher.