Online Library / Libraries As Institutions
What librarians actually do all day
The expertise is finding and judging information, not shelving it.
The public image of the job is sorting and shushing, which is roughly as accurate as thinking a chef's skill is owning knives. The actual professional skill is finding things and assessing them: knowing how information is organised, how to search a body of material properly rather than hopefully, where a particular kind of question is answered, and, critically, how to judge whether a source is any good. That last part has become dramatically more valuable as the volume of available material has exploded and the quality has not kept pace.
This is why the question at the desk is worth asking even when you feel it is too vague. A librarian is trained to take a badly formed question and turn it into a searchable one, which is a skill most of us never learn because we were never taught to interrogate our own queries. People routinely arrive with half a memory of something and leave with the thing itself, and are surprised, when the truth is that this is the ordinary output of a professional doing their profession. There is no such thing as a question too small or too odd to bring to the desk.
The other half of the work is quieter and less visible: deciding what to acquire on a finite budget for a specific community, arranging things so that strangers can find them, running the programmes, and helping people navigate systems that have moved online faster than everyone could follow. Very little of it looks like the picture. If you want to use your library well, use the person at the desk. They are the most underused resource in the building. Nobody minds being asked, and most of them would far rather answer a real question than tidy a shelf. Asking costs you nothing and frequently saves an afternoon of fruitless searching at home.