Tales of Heresy by Dan Abnett, Matthew Farrer, Mike Lee, Graham McNeill, Anthony Reynolds, James Swallow, Gav Thorpe.
3/5 - Mixed bag of short stories. Some are great, some are mid. I do think the good stories outweigh the bad on average and there's a lot of good lore.
Mechanicum by Graham McNeill
4/5 - I enjoyed this a lot
Battle for the Abyss by Ben Counter
4/5
Legion by Dan Abnett
2/5 - The story is good, but I found it hard to follow in places.
Fallen Angels by Mike Lee
3/5 - This is better than the previous book. I'm glad I read it immediately after rather than the suggested order.
Descent of Angels by Mitchel Scanlon
3/5
Fulgrim by Graham McNeill
4/5
The Flight of the Eisenstein by James Swallow
3/5
Galaxy in Flames by Ben Counter
4/5 - Amazing
False Gods by Graham McNiell
4/5 - Excellent
Horus Rising by Dan Abnett
4/5 - What an entry to the Horus Heresy. I wasn't sure if I would want to invest myself in this series, but this was great.