Trade paperback that collects the two previously published hardcovers; X-Men vs. Fantastic Four and X-Men vs. Avengers which collected the four issue Fantastic Four vs. X-Men mini-series and the four issue The X-Men vs. The Avengers mini-series. This trade also includes reprints of Fantastic Four #28 and X-Men #9.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/x-men-vs-avengersfantastic-four/4050-41368/).
