This article covers most of the [Books] activators.

Remember that in order for them to be used in scenes, the book must be in your inventory.

The book's names mentioned below are sorted in order of expected time, but they can be picked up at any moment since there are no quests behind them.
Sometimes multiple books can lead towards unlocking the same condition for one scene.

Suggestions: If you're stuck for any reasons, you can fetch the ID of the book by typing the book name in console help, for example:
help "Whiteman" 4 book


Scenes

[Federation Faction]

Federation Officer - Officer Grettink

• Whiteman's Journal found in Alliance Soldiers at DB.Tech/Subway
  
  
• Mission: Explosive Retrieval found in Alliance Soldier at Blue Line Downtown/Scollay
  
  
• Wilhelm's Journal found in Federation Soldier in the red line subway between Patriot's Place and College Square Station
  

• Officer Grettink Case Files found in Federation Officer at Red Line Postal/Downtown
  
  
• Bita Abaro's Journal found in Survivor at College Square Station
  
  
• Mutant's Extermination Report
  
  
• Gideon Sanford's Journal found in Federation Soldier at Fort Independence
  
  
• The Salvation of Bernie Rook found in Barney's Bunker(Salem) on the desk
  
  
• The Incomplete Gospel found in Themis Preacher at Salem's Church
  
  
• Private Webb's Journal found in US Army Remnant at Bunker Hill
  
  
• Bunker Hill Mission Log found in US Army Remnant at Bunker Hill
  
  
• Liber's Command found in Redeemers at Fort Hagen Satellite
  
  
• Captain Jenner's Journal found in US Army Remnant at Fort Strong
  
  
• Sgt. Humphrey's Journal found in US Army Remnant around Fenway Park
  

• Pact of the Commander
  
  
• Marchand's Final Step
  
  
• Matt Hynes's Journal
  
  
• Charlie McEntire's Journal
  
  
• Jim Kennedy's Journal found in Survivor at Scollay Square Station
  
  
• Joan's Journal
  
  
• Hippocratic Suggestion
  

• News Boston's Bundle (Vanilla)
  
  
• Andrew Station: Entertainment Central?
  
  
• Marika Nosek's Journal found in Survivor at Andrew Station
  
  
• Friendly Wager
  
  
• Meg Kasabian's Journal found in Survivor at BATDFL
  

• The Holy Order found in Themis Cultist at Parson's State
  

• Jason Deluge's Journal found on a small table in Jason's Deluge lair, Red Line Lexington/Concord Subway
  

• US Covert Operations
  
  
• Sgt.Humphrey's Journal
  
  
• Janus Manifesto
  

• Non practice allowance - Doctor Shaw
• Officer Grettink's Case File - Officer Grettink
• Mutant's Extermination Report - Gideon Sanford
• Scollay Station Mushroom Report - Doctor Riverson
• F. Proznanski's Journal - Frank Proznanski
• Sara Schwartz's Journal - Sara Schwartz
• Janus Manifesto - Sunshine Jack
• Jason's Deluge Journal - Jason Deluge