I've loved sourcebooks ever since I first picked up a copy of a Marvel Universe Handbook. What a way to get to know a superhero and the universe he lives in.
This one introduced me to the Advent Comics Universe, which seems to be quite an interesting one. Among my favorite characters I count Rann Darklight and Savior.
The art is pretty mixed with some artwork looking like it was made with the Hero Machine software and some just looking amazing (for instance Michael's page).
All in all it is a pretty professional package with amazing coloring work and an interesting read. I will be sure to look out for some more Advent Comics.
Check it out here...