A browse view is a custom view folder created to:
You can designate up to three browse views to display in the learner user interface in the Browse the Library link. The sub-folders in a browse view are presented to learners as topics and sub-topics in the Library.
If you have Advanced Groups enabled, you can also designate up to three browse views for each Advanced Group. Browse views designated for Advanced Groups can be different from the designated site-wide browse views. Learners assigned to an Advanced Group will see only the browse views active for that group.
Browse views use an organizing principle that is useful for specific types of browsing, such as by job role, competency, or vendor. However, you might also create browse views that highlight specific types of learning content, align with training objectives, or other organizational objectives. See an example here.