Avengers vs. X-Men (abbreviated AvX) is a comic book crossover event published by Marvel Comics
The event was preceded by the four-issue limited series Avengers: X-Sanction by Jeph Loeb and Ed McGuinness and Avengers vs. X-Men #0. Avengers vs. X-Men also ties into the limited series AVX: VS, described as "the fight book" which expands upon many of the one-on-one battles featured in the main series, the digital series; Avengers vs. X-Men: Infinite, and into a number of ongoing series including Avengers, Avengers Academy, New Avengers, Secret Avengers, Uncanny X-Men, Wolverine and the X-Men and X-Men: Legacy. The event was succeeded by the limited series AvX: Consequences.