Complex sentence: Han Solo and the Lost Legacy is a science fiction novel set in the Star Wars Expanded Universe; it is the last book in the The Han Solo Adventures trilogy, and as such is one of the oldest Expanded Universe works.
Split into simpler sentences: Han Solo and the Lost Legacy is a science fiction novel set in the Star Wars Expanded Universe. It is the last book in the The Han Solo Adventures trilogy, and one of the oldest Expanded Universe works.