More of us are home more these days, and that means our books need a better place to live. Books can be an escape or a way to pick up new skills, so a good bookshelf is worth having. A Pro can take on the furniture assembly for you.
Pros who handle bookshelf assembly bring their own tools and usually work quickly. They can also mount the shelves on your wall.
You could spend the afternoon sorting small screws and parts, or you could hand that job to a Pro and start deciding which books go where. If a desk is on your list too, desk assembly is a Pro's job as well.