This is the 9193rd most frequent Swedish word.
fackbok
A "fackbok" is a nonfiction book focused on a specific subject or field.
The word 'fackbok' here denotes a book that provides specialized information on specific subjects of study.
Jag tycker att fackböcker är väldig lärorika.
I think that non-fiction books are very educational.
In this sentence, 'fackbok' is used as a reference to a specialized book focused on the domain of astronomy.
Min bror köpte en ny fackbok om astronomi.
My brother bought a new non-fiction book about astronomy.
Here, 'fackbok' refers to educational books suggested within an academic context to supplement learning materials.