Training manuals are 12 books that permanently improve what Joel crafts in The Last of Us Part I, from tougher shivs to stronger health kits. Finding all of them earns the Something to Fight For trophy.
Bill's Town: Shiv: Sharpening. Pittsburgh: Health: Splinting, Shiv: Reinforcement, Melee: Knots, Molotov: Construction. The Suburbs: Bomb: Containment, Melee: Techniques. Tommy's Dam: Smoke: Chemistry. The University: Health: Sterilization, Molotov: Deployment. Lakeside Resort: Smoke: Shaping. Bus Depot: Bomb: Shrapnel.
Melee: Techniques only appears if you boost Ellie into an attic in The Suburbs. Molotov: Deployment and Smoke: Shaping each need a shiv to open a locked door.
Bomb: Containment
Bomb: Containment is a training manual on a shelf in the sewers of The Suburbs. It makes nail bomb blasts 1.5 times wider.
Bomb: Shrapnel
Bomb: Shrapnel is the last training manual, on top of a box truck in the underground tunnel of Bus Depot. It doubles the blast radius of nail bombs.
Health: Splinting
Health: Splinting is a training manual in the hunters' building early in Pittsburgh. It makes crafted health kits 33% stronger.
Health: Sterilization
Health: Sterilization is a training manual on a desk in an upper-floor room off the university courtyard in The University. It makes crafted health kits 67% stronger.