Amazon kindle device is the one that is demanded by every age group to read a book and also for the fun and learning purposes. If you don’t have a Kindle device then you can use the kindle app for the same purpose with the audible book feature. You have to keep one point in mind and update your app from time to time otherwise it will flash a message about why is my kindle app not opening books. You can resolve this technical glitch with ease by going through the prominent website.