"Extract of" or "extract from"?

[Kinyonga]

"This is an extract of the book War and Peace," is what I would have always said, but recently I was told it should be " an extract from". Can anyone give me a definitive answer to this?

 

[dojibear]

You can extract some text from a book.
You can extract some text out of a book.

You cannot extract some text of a book.

So "from" is correct, and "of" is wrong.

You use "of" in "part of", but not "extract of".

 

[Kinyonga]

You can extract some text from a book.
You can extract some text out of a book.

You cannot extract some text of a book.

So "from" is correct, and "of" is wrong.

You use "of" in "part of", but not "extract of".

But "extract" is not being used as a verb, but as a noun, here. Sure, "from" works in both cases, but you would hardly say "This is an extract out of a book."

 

[Chasint]

"This is an extract of the book War and Peace," ...

If you made an extract of War and Peace, you would presumably boil the book in a pan overnight and then simmer until most of the liquid had evaporated.

 

[Linkway]

The phrase "an extract of" is used but with a different (related) meaning:

The WR dictionary definition 7. applies:

a solid or liquid substance containing the essence of a food, plant, or drug in concentrated form:beef extract;
vanilla extract.

 

[Dale Texas]

If you made an extract of War and Peace, you would presumably boil the book in a pan overnight and then simmer until most of the liquid had evaporated.