Today there are new book bundles out for the Horus Heresy Series. Its a good time to pick up any sets that you are currently lacking, but even better if you are just starting your collection.
New From Forgeworld Today
https://www.forgeworld.co.uk/en-US/New
The Horus Heresy Collection £338
The Horus Heresy Books Bundle 1-5 £264
The Horus Heresy Books Bundle 1-3 £167
The Horus Heresy Books Bundle 4-5 £116