Exploration books tier list in Indiana Jones and the Great Circle

Exploration books in Indiana Jones and the Great Circle are optional books that can help Indy find various mysteries and collectibles in the game. This first-person adventure title features multiple zone-like maps — each filled with unique missions, mysteries, and collectibles. You can reveal their locations by finding Exploration books.

This tier list will rank all the Exploration books in Indiana Jones and the Great Circle, while also mentioning what they can do.

Disclaimer: This tier list is based on the personal opinions of the writer.

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Tier list of all the Exploration Books in Indiana Jones and the Great Circle

Tier list of all the exploration books in the game (Image via Bethesda Softworks)

Tier	Book	Region	Effect/Key Points
S	Gizeh Artifacts	Gizeh	Reveals Artifact locations in Gizeh, essential for key collectibles.
	Gizeh Mysteries	Gizeh	Highlights Mysteries in Gizeh, critical for uncovering secrets and solving puzzles.
	Sukhothai Relics	Sukhothai	Unlocks Relics in Sukhothai, obtainable through a mystery; valuable for advanced exploration.
	Vatican Relics	The Vatican	Locates hidden relics in the Vatican, tied to major puzzles like House of God Puzzle.
A	Gizeh Frequencies	Gizeh	Locates Radio Frequencies in Gizeh, aiding story progression and unlocking new areas.
	Gizeh Notes	Gizeh	Reveals Notes in Gizeh, which often contain lore and key narrative details.
	Sukhothai Frequencies	Sukhothai	Similar value to Gizeh Frequencies, specific to Sukhothai region.
	Sukhothai Medicine	Sukhothai	Shows medicine locations, critical for survival in challenging areas.
	Vatican Medicine	The Vatican	Helps locate medicine in the Vatican, crucial for fieldwork and completing puzzles.
	Marshall College Guide	The Vatican	Highlights Notes in Marshall College, relevant for uncovering Indiana Jones' backstory.
B	Gizeh Books	Gizeh	Reveals Book locations in Gizeh, less critical compared to other collectible types.
	Sukhothai Mysteries	Sukhothai	Highlights Mysteries in Sukhothai, useful but not universally critical.
	Shanghai Guide	Sukhothai	Locates Notes in Shanghai, valuable for lore but region-specific.
	Vatican Notes	The Vatican	Reveals Notes in the Vatican, useful for lore but less impactful than Relics or Artifacts.
	Gizeh Medicine	Gizeh	Locates Medicine in Gizeh, helpful but situational.
C	Sukhothai Books	Sukhothai	Reveals Book locations in Sukhothai, less impactful for progression or key items.
	Sukhothai Cogwheels	Sukhothai	Effect is unspecified (TBA); cogwheels likely tied to niche mechanics.
	Sukhothai Notes	Sukhothai	Locates Notes in Sukhothai, a less critical collectible type.
	Vatican Books	The Vatican	Reveals Book locations in the Vatican, less impactful compared to Artifacts or Mysteries.
	Vatican Mysteries	The Vatican	Highlights Mysteries in the Vatican but overshadowed by Relics and Medicine in priority.
	Kummetz Guide	Sukhothai	Locates Notes in Kummetz, tied to a single area, making it less versatile.

Which books should you focus on in Indiana Jones and the Great Circle (Image via Bethesda Softworks)

S-Tier:

The S-tier books are indispensable for uncovering the most valuable collectibles or solving major puzzles in Indiana Jones and the Great Circle. Gizeh Artifacts and Gizeh Mysteries deserve this spot since they reveal the locations of Artifacts and Mysteries in one of the game's central regions. Artifacts are often tied to critical quests, while Mysteries unlock deeper secrets, making these books crucial for both progression and learning the lore of the game.

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A-Tier:

The A-tier books offer significant utility but are slightly more situational compared to their S-tier counterparts. Gizeh Frequencies and Sukhothai Frequencies are prime examples, as they reveal Radio Frequencies, which can be collected for special rewards. Moreover, books like Sukhothai Medicine and Vatican Medicine stand out because they reveal the locations of Medicine Bottles, which are essential for survival in challenging zones.

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B-Tier:

Books in the B-tier provide valuable assistance but are less impactful than higher-tier entries due to their focus on less valuable collectibles. For example, Gizeh Books and Vatican Notes reveal Books and Notes, respectively, which often serve to enrich the lore but lack the tangible rewards associated with other collectibles.

Likewise, the Shanghai Guide and Sukhothai Mysteries are useful for locating Notes and Mysteries in their respective regions. Although these books are helpful for completionists, they are not essential for general progression.

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C-Tier:

C-tier books are ranked the lowest due to their narrow utility or unclear effects. For instance, Sukhothai Books and Vatican Books reveal Book locations, which are among the least impactful collectibles in the game. Similarly, Sukhothai Notes and Kummetz Guide focus on Notes, but their narrow scope and limited narrative impact make them less useful.