Complex sentence: Fighting American is a patriotically themed comic book character created in 1954 by the writer-artist team of Joe Simon and Jack Kirby, published by the Crestwood Publications imprint Prize Comics and, against normal industry practices of the time, creator-owned.
Split into simpler sentences: Fighting American is a patriotically themed comic book character created in 1954 by the writer-artist team of Joe Simon and Jack Kirby. Published by the Crestwood Publications imprint Prize Comics, it was, contrary to standard industry practices of the time, creator-owned.