Encyclopedias, Almanacs, Transcripts, and Maps
- The Prenestine Lots
- The Printing of Important Mathematics Texts Leads the Way to the Scientific Revolution
- The Progressive Thinker (Newspaper)
- The Proliferation of Popular Mathematics Books in the 1990s
- The Promotion of Mathematical Research
- The Proof of Fermat's Last Theorem
- The Prophet
- The Prosperos
- The Psychic Directory
- The Psychic Evidence Society
- The Psychic Eye Directory
- The Psychic Yellow Pages
- The Psycho-Therapeutic Society
- The Psychological Society
- The Psychotronics and Folk Medicine Center
- The Purrah
- The Pyramids of Ancient Egypt
- The Q Directory
- The Quest Society
- The Quincey P. Morris Dracula Society