This is it!  The second and concluding volume in the classic, definitive treatment of the genesis (and exodus, for that matter) of the Silver Age superhero.  We've done plenty of raving about this series before, so rather than repeat ourselves here, we'll refer you to our previous comments on New Frontier.  All we've got to say at this time is:  No self-respecting fan of superhero comics will want to miss this series, and now that it's completely in print in two handy TPBs, there's really no need to put it off any longer.