I use Google Play Books to manage my ebooks.
I have installed the Play Books app as recommended on https://support.google.com/googleplay/answer/2851654?hl=en-CA to access them offline, but when I launch the apps (or when I go on this address http://books.google.com/ebooks/app), it's written: "No books in this library yet".
I am sure I am in the correct Google Play account, and that I have books there. But all my books in Google Play are personal uploads.
Any idea why it isn't working?