The back of an open book with a round label on the cover.

Open Book Facing Back

A row of many different standing closed books, as if they were on a shelf, seen from the side of their spines.

Books In A Row

A turned-on filament light bulb with a wire inside and a screw bottom.

A closed book with a ribbon bookmark sticking out from its bottom.

Three standing different books, seen from the side of their spines.

An open book with four parallel lines of text on each page, facing front.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.