The cover art for most Horus Heresy books was made by Neil Roberts. One notable exception is False Gods , whose original cover was by Phillip Sibbering.

Quick Scoop

Warhammer Community says Neil Roberts painted nearly every mainline Horus Heresy cover, and his style defined the series’ look. The same source notes that False Gods is the exception, with both the original Phillip Sibbering artwork and Neil Roberts’ later reinterpretation.

In short

  • Main artist: Neil Roberts.
  • Exception: False Gods original cover by Phillip Sibbering.

TL;DR: If you mean the classic Horus Heresy novel covers, it was mostly Neil Roberts.