The reprinted issues include the M4 back-up stories from the original "John Byrne's Next Men" issues #7-12.
Credits are acknowledged for colorists although the volume is B&W. (The credits obviously refer to the original material.)
The introduction to the volume is by Archie Goodwin from 1994, reprinting an introduction that Goodwin wrote for one of the Dark Horse TPBs. Byrne's own footnote states that, when asked if he wanted an intro for the volume, he could think of none better than the one Goodwin wrote in 1994.
Eisinger is the editor for the TPB; Richardson and Kesel are editors of the original stories from "2112" and "Next Men #1".