Wanted to check for your FlipBook product:
1. For Drupal I don’t see any module download available at https://www.drupal.org/project/flipbook? I tried for V7 and V8 but nothing showed.
2. For non-commercial use would that include a government archives? They only operate on grant or taxpayer funding and do not charge for accessing of the online books.
Danie van der Merwe