Two Major Volumes

Although I have never seen a copy, I understand that the omnibus volume, The Imperial Stars, has the same contents as The Technic Civilization Saga, Volume IV, Young Flandry, but, of course, a much better and more appropriate cover.

The Imperial Stars is the immediate sequel to The Earth Book of Stormgate. The Earth Book "spans, illuminates and completes" (front cover blurb) all that has gone before about the Polesotechnic League, the Ythrians and the early Terran Empire whereas The Imperial Stars prepares for all that is to follow about the later Empire and its long aftermath. Thus, these two volumes are a major turning point in the Technic History. They collect fifteen, just over a third, of the forty three instalments of the History.