The Layout
After selecting your book, your screen should look something like this. Click on areas of the image to see either a brief overview or in-depth description of the topics.

There are three different modes for viewing material within bos.
. The "View" buttons allow you to move between
the different layouts. ![]()
The standard layout is a vertical split-screen arrangement, with the contents "tree" appearing in the left hand window, and the text of the book appearing on the right. (as seen above).
If you want to view just the text of the book click on the
"Only Text" button.![]()
If you want to view just the books contents
"tree" click on the "Only Contents" button.![]()
To return to split-screen mode, with contents and text
visible, click on the "Both" button.![]()
There is no right or wrong way of viewing the book use whichever you find most convenient.