Sometimes when people aren't seeing what they expect to see in their Leanpub library, it is because they are signed in to the wrong Leanpub account.
You can check which account you are signed in to by clicking on the menu at the top right of a Leanpub page:
When you click on the menu, you will see a box with the account details:
If you've checked and you are signed in to the correct account, please see this article:
We hope that helps!