Why does Guardians of the Galaxy start at Volume 2 instead of Volume 1? Is the Volume 1 the old Guardians of the Galaxy or something?
The Guardians of the Galaxy were created and debuted in 1969, but only appeared as guests or highlighted characters in other books like Marvel Super-Heroes, Marvel Two-In-One, Giant-Sized Defenders, Marvel Presents, The Avengers, et al.
In 1990, they finally received their own self-titled book. It starred a group made up of different members, but using the same name.
It ran for 62 issues before finally being cancelled.
That 1990 series is considered "Volume 1".
Yes. Volume 2 is the second incarnation of the team. The first Guardians of the Galaxy was first published in 1969, and the series was cancelled in 1995. Volume 2 (first published in 2008) starts with Star Lord attempting to reform the Guardians of the Galaxy.