Loom has two main modes: Group view and thread view.
Group viewThe group view lists all the hierarchies that the weaver daemon knows about. These are presented one with one hierarchy on each line. The number of groups in the hierarchy is displayed.
Groups are also listed in the same view. Group lines say how many articles there are in each group, and also gives a short description of each group.
The user can click each hierarchy to open it, and descend into further sub-hierarchies.
(There's also a search function where you can list groups that match some string.)
Finally, the user will have found a group to read, and clicks that group link, which brings us to:
Thread viewThe thread view is separated into three frames: The thread frame, the article frame, and the navigation bar.
When reading a group, you would normally just use the m key.
Article frameThis displays the article, nicely formatted.
Navigation barThe navbar at the bottom of the page has buttons for navigating back and forth in the threads, and also displays a plain-text link that points to a "stand-alone" version of the article. This may be handy if the user wished to send the URL in email to somebody. Finding out where you are in a frame-based system can be somewhat tricky otherwise.
A search engine entry form is also in the navbar, as well as a spam reporting button.