Left join on my own list, don't know the syntax

[Leif Wessman]

I have a BOOKS table with the columns ISBN and TITLE. I have a list of
5 isbn-numbers and I would like to find out their titles if they are
in the database, or null if they are not. In other words, I would like
to do a LEFT JOIN (or is it RIGHT JOIN?) like this:

SELECT ISBN,TITLE FROM BOOKS ON
("123243434X","4352542555",4242343241")

the result could be

123243434X | "book1"
4352542555 | NULL
4242343241 | "book2"

I'm not sure of how to create my sql syntax. The above gives me an
error.