This is the 4835th most frequent Swedish word.
beckman
"Beckman" is a Swedish surname and does not have a specific meaning as a standalone word in English.
Here, 'Beckman' is used as a proper noun, likely a surname, to refer to a person.
Beckman är en skicklig lärare.
Beckman is a skilled teacher.
In this sentence, 'Beckman' is again used as a proper noun, indicating the author of the book.
Jag köpte en bok skriven av Beckman.
I bought a book written by Beckman.
'Beckmans' indicates possession, referring to a school associated with the person or entity named Beckman.