"Family"
Picks up after the end of X-Factor (Vol 1) #64.
*They're back! Once they were Xavier's young charges: mutant teens who bore the responsibility of protecting a world that hated them. But time has hardened these five X-Men, forcing them to re-imagine their mission and purpose. And now, the original dream-team returns to fight the one threat that's haunted them since the day they took on the X-Factor name. Join legendary X-scribe Louise Simonson as she reunites with the title and characters she made famous for an epic in the Forever tradition! *Source: marvel.com
"The Apocalypse Journal"
Apocalypse re-tells his origin and of the coming of the Celestials.
"X-Factor Saga"
A summary of the history of X-Factor.