The BSON Books Viewer is designed for reading BSON books offline (without internet connection). It has two different layouts: (1) Style s for smartphones and small tablets; (2) Style L for laptops and larger tablets.
The BSON Books Viewer is essentially a Web page. There is no need to download and install the traditional APP.
For Smartphones and Small Tablets
Step 1: Visit the following Web address.
https://www.bsonbooks.com/Viewer/s/
Step 2: Download BSON Books
- Within the Viewer, click on
at the top left to bring up a menu.
In the menu, click on 
to visit a portal page. - Select a book via category, search, or featured titles in the portal page.
- From the information page of the selected book, click .
"Import" is a specific type of download. (more info)
For Laptops and Larger Tablets
Step 1: Visit the following Web address.
https://www.bsonbooks.com/Viewer/L/
Step 2: Download BSON Books
- Within the Viewer, click on
at the top left to visit a portal page. - Select a book via category, search, or featured titles in the portal page.
- From the information page of the selected book, click .
Details on how to use the Viewer are described here.
Note: The Viewer works on all major browsers including mobile Safari on iOS 13, but not iOS 14. In the latter case, you may use other browsers (e.g., Chrome, Forefox, or Edge) on iPhones. See An Intentional (?) Bug In Apple's Safari.
Last updated: March 23, 2021