Which One Should Be Used?
'From someone' and 'by someone' are both correct and can be used. The meaning they convey, however, is very different.
'From someone' is used to show who sent or gave something to another. Have a look:
This is a gift
The bill is
When we want to say who created something. It can be the writer of a book, a music composer, a film producer, etc. Have a look:
The Shadow and Bone trilogy are written
I was watching a movie