The book covers don't do justice to the content. This is the 1st book in a series of 4. This is a great read, you'll want to start the next one immediately after putting this one down. It has everything. The series starts with a mystery and crash landing in the first book. It develops into lots of great characters, Politics, seemingly genocidal ET's and successful first contacts and alliances against a common threat. Fans of David Weber, Heinlein, Sharon Lee & Steve Miller, John Ringo, Lois McMaster Bujold and Anne MacCafrey--to name a very few favorite authors-- will like these books. The themes are well thought out, and the characters all deal with the choices, sacrifice and agony of war, loss and hope in a realistic manner and sometimes with a little humor and romance thrown in.