I’ve seen a bit of it around but know nothing about it. I do love large world building with extensive story lines (I really enjoyed the entire Dune series, even the prequels his son wrote). So if I wanted to start reading WH books, where should I start?
I will warn you, as a Dune and SW fan myself, the lore and books probably are equal or surpass them. I’ve been a fan of the storyline since the 90s and with the advent of the Horus Heresy series back in the early 2000s it made my day.
That being said. A lot of people will suggest that as a starting point. It actually takes place 10k before the current events and follows everything that leads up to the downfall of the Imperium and how it ends up being basically the Grimdark setting it is today. It’s about 60+ books and some heavy reading.
The last few of that series (which JUST ended) is sort of considered a separate series called the Siege of Terra and follows the end of the Horus Heresy and the final battle between Horus and the Emperor and explains how he ended up on the Golden Throne.
If you would like something more current and a little shorter read there is the Eisenhorn series. It’s a fantastic series about an Inquisitor and his retinue. It’s a very popular 40k series.