- Peter, the Apostle, Saint1
- Phalaris, Tyrant of Agrigentum, active 6th century B.C.1
- Philosophy, Ancient1
- Physical appearance of Jesus Christ1
- Physics1
- Pictorial works1
- Political science1
- Politics and government1
- Portolan charts1
- Portraits1
- Prayer--Catholic Church1
- Prescriptions, formulae, receipts, etc.1
- Processionals (Liturgical books)1
- Protogothic1
- Punic War (1st) (264-241 B.C.)1
- Punic War (2nd) (218-201 B.C.)1
- Quarter bindings1
- Raised bands1
- Rhetoric, Ancient1
- Rhetoric, Medieval1