Chris Wraight
Not Andy Smillie.
In all seriousness, Chris Wraight is a newer Black Library writer, and so far he doesn't disappoint.
His works so far consist of:
Battle of the Fang, a rather awesome Space Marine Battles novel about the Space Wolves fighting their traitor nemesis, Magnus the Red, and the Thousand Sons on Fenris.
Wrath of Iron, another Space Marine Battles novel, where the Iron Hands fight the forces of Slaanesh while being extremely awesome, though also being massive dicks in the process. Nice to see the Iron Hands getting some time in the spotlight.
Iron Company, a WHFB novel I haven't read.
Kraken, a Space Wolves short story that I haven't read yet but looks awesome.
Brotherhood of the Storm, a recent limited edition Horus Heresy novella about the White Scars and the event that caused Horus to mistakenly assume the Khan would join him.
He has a Space Wolves short story and a full Space Wolves novel, Blood of Asaheim, on the way soon.