[sabredog]

You will find that the Gaunt's Ghost series is a superb read and Abnett pulls no punches. The Imperial Guard are billions strong and are most often used like the Russian Army was used during the first assaults against the German war machine in 1941.

WH40K is a dark and bleak future and I often wonder if humanity are truly the good guys. But in an Imperium spanning a million worlds, there is room for everything and anything.

You will find a lot of references to telepathy and the religion of the God Emperor through out all the WH40K books, especially when Psychics such as Inquisitors, telepaths and Space Marine chaplains/librarians appear.

On that note, the Ultramarines series (Book1 - Nightbringer) is also a good series.