Manga Vs Light Novel - All You Need Is Kill

RyanSharp said:
Old thread, but will answer it for the benefit of people coming to this thread in future.

Both are practically the same, though the novel is still better. It explains a few things such as the aliens weaknesses, origin, purpose, etc. Nothing drastic, you won't lose out on anything important if you just read the manga.

In all honesty, both are short enough that you can read them both in one sitting.