That always makes me laugh. I don't even know how to reply to that question. Library jobs are so diverse, and have evolved so much to fit the needs of public/elementary/college/legal/film/corporate/medical/federal/theological/etc. libraries but the job description still gets reduced to that singular aspect.
I was scrolling through our library's Instagram history today, and I am so happy to see that our photos capture all the different types of responsibilities and tasks we undertake on a daily basis. If I just sat around reading all day, I wouldn't have time to: