Encyclopedias, Almanacs, Transcripts, and Maps
- The Temples at Abu Simbel
- The Thorough Axiomatization of Algebra
- The Three Unsolved Problems of Ancient Greece
- The Thuggee
- The Tibetan
- The Tongs
- The Top Ten Movie Monsters
- The Transformation of the Physical Sciences into Professions During the Nineteenth Century
- The Transmission of Arabic Science to Europe
- The Treatment of Blue Baby Syndrome
- The Tree of Life, and The Tree of the Knowledge of Good and Evil
- The Tsitsith
- The UFO Examiner (Journal)
- The UFO Mystery Grows
- The Unknown (Magazine)
- The Unknown World (Journal)
- The Unmanned Exploration of the Solar System: Mariner, Viking, Pioneer, and Voyager
- The Unused Brain
- The Upright Man
- The Use of Hindu-Arabic Numerals Aids Mathematicians and Stimulates Commerce