Every public job in a library should include a Note component with a short explanation of what the job does. This note should be separate (not encapsulate any components) and be visible when the job is opened (i.e., not too far down or to the right - usually top-left corner of the job is the best location).

Difficult and non-obvious parts of each job should be explained in notes as well. Keep in mind that even for libraries users can look inside in Job Inspector or via Designer when debugging.

Each public subgraph in a library project must have a description in the Properties tab. Do not include too much detail here and place the most important info at the beginning of the description. See Enhancing Library Look and Feel for more information.