This is a comic drawing done by comic artist Tom Gauld, sketching out the space and activity happening within "The Library".
"A cartoonist ‘builds’ a complex structure, manipulating space to organise time and impose a narrative.An architect does much the same thing.
Consider a museum, a cathedral, an airport terminal: there is an implicit narrative in each, with the visitor “reading” the constructed space.
These resemblances even show up in technical vocabulary.
We speak of the “construction” of a script; both a building’s floor plan and the roughs for a comics story show a “layout“."
Tom Gauld's Website