librarything [options] ISBN
Fetch a cover image for the book identified by ISBN from LibraryThing.com
Whenever you pass arguments to librarything that have spaces in them, enclose the arguments in quotation marks.
--version
show program’s version number and exit
--help, -h
show this help message and exit
--username, -u
Username for LibraryThing.com
--password, -p
Password for LibraryThing.com