As far as I can tell, the first volume was published as a paperback; this second volume does not seem to have been published except in this ebook form.
Both collections can be downloaded for free at the Internet Archives. Here is the link for this book, book two:
Book Two contains the author's preferred version of the second Captain Confederacy story, plus a previously unpublished story set in the same alternative history world.
Here is the link for Book 1, which should be read first:
If you are not familiar with these comics, you would be well advised to first learn about them, and about how these two ebook editions were created, at Shetterly's Captain Confederacy blog:
The comics can also be read at that blog site, for those who prefer not to download the ebook version.
Book Two is in color, except for the unpublished story; Book One is in black and white.
Summary: Book Two continues the Captain Confederacy story as introduced in Book One. In the alternative history world of this series, America has been split into several countries, including the North, the South, Texas, Louisiana, and the West Coast. This book introduces different heroes from these countries and others.
REVIEWS FOR THE CAPTAIN CONFEDERACY SERIES:
"...plots are intricate and creative.... This is not a comic book for children." ―Southern Magazine
"...excellent alternate-Earth science fiction." ―Comics Buyer's Guide
"...Written with intelligence and no fear of controversy. Buy it!" ―Graffiti
"From the retooled Stars and Bars of Captain Confederacy's costume to the mapping of urban and rural southern places, the series takes up the symbols of the South and imaginitively reconstructs them, shaking loose the stock figures, geographies, and temporalities of southerness. If Octavia Butler and Kara Walker alter the meaning of the southern lady, Shetterly reconfigures the southern gentleman, unfixing his location in an idealized Civil War past, instead deploying him for a different understanding of our present." ―Reconstructing Dixie: Race, Gender, and Nostalgia in the Imagined South, by Tara McPherson (Duke University)