This is the 107th most frequent Swedish word.
handlar
"Handlar" in Swedish can mean "deals with," "is about," or "shops," depending on the context.
Here 'handlar' is used to mean 'buy' or 'shop' in the context of shopping.
Jag handlar mat varje vecka.
I shop for food every week.
Here 'handlar' signifies 'is about' or 'concerns' in the context of a subject matter.
Boken handlar om historia.
The book is about history.
In this case, 'handlar' expresses 'is about' in an abstract sense of what something deals with.