The saga spans founding wars, outlaw roads, late imperial fracture, Titans, records, houses, and centuries of political memory. You do not need all of that before page one.
If you are new, start with The Sealed Star, Book I of Aurelion: Outlaws of the Mandate. A standalone gateway into The Celestial Mandate universe. It begins with people, roads, warrants, false records, and refuge before asking you to carry the full weight of the history.
All three paths are valid. The right one depends on what kind of doorway you want.
Recommended for most new readers
Read Aurelion: Outlaws of the Mandate -> Aurelion: The First Mandate -> Aurelion: The Three Suns. Begin with The Sealed Star, The Black Writ, then The Hundred and Eight.
Best if you want fugitives, false law, hidden records, road danger, found refuge, and testimony where power wanted silence.
The full civilization arc
Read Aurelion: The First Mandate -> Aurelion: Outlaws of the Mandate -> Aurelion: The Three Suns. Follow all four founding books, all three Outlaws books, then all six Three Suns books.
Best if you want to watch victory become law, law become memory, and memory become a later battlefield.
Founding and fracture before the road
Read Aurelion: The First Mandate -> Aurelion: The Three Suns -> Aurelion: Outlaws of the Mandate. Watch the Mandate rise, fracture, and become a contested inheritance before returning to the people the road remembers.
Best if you want the largest imperial arc first, then the human middle-era testimony as a deeper return.
Use this when you want the internal historical sequence rather than the easiest first door.
If you want to know where the Mandate came from, go to Aurelion: The First Mandate. If you want to know what the Mandate becomes, go to Aurelion: The Three Suns.
Avoid deep chronology, hidden genealogy, Titan ownership chains, and after-reading connective tissue until the books give you a reason to open them.