Content Warning: This section of the guide includes discussion of graphic violence and death.

Light Bringer opens with two maps. The first shows an image of the Jovian system, including Jupiter and some of its surrounding orbiting bodies: the Prograde and Retrograde Groups and the moons Callisto, Europa, Io, Ganymede, and Kaylke.

The second map shows a closer view of the moons Io and Europa. Key areas of Io include the Yellow Sea, Wasta of Karrack, the Institute, Nesos, Plutus, Dragon Tomb, Sungrave, Nightmourn, and Darkfall. Important landmarks on Europa include the Discordia Sea, Hormonia, Oceanus, Psychonas, Herkalion, the Deep, and the Nyad and Nixiar Isles.

Brown includes an expansive Dramatis Personae, showing the most critical characters throughout the series. The Dramatis Personae is divided into groups listing the members of the rebel Solar Republic, the oppressive Society, the Rim Dominion, the Obsidian, and other non-categorized characters.

Key members of the Republic include the Sovereign Virginia, Darrow, Pax, Sevro, Kavax, Thraxa, Cassius, Matteo, and Quicksilver. Atalantia, Lysander, Atlas, Ajax, Pallas, Cicero, Julia, Rhone, Glirastes, Exeter, and Pytha are listed among the living and most relevant characters in Light Bringer.