Thema – the subject category scheme for a global book trade

  1. Pittura Metafisica
  2. Place names & gazetteers
  3. Place qualifiers
  4. Places & peoples: general & pictorial works
  5. Places in old photographs
  6. Plains & grasslands
  7. Planned economic systems
  8. Planning law
  9. Plant biology
  10. Plantations of Ireland (1556–1663)
  11. Plasma physics
  12. Plastic & reconstructive surgery
  13. Plastics & polymers
  14. Playa del Carmen
  15. Plays, playscripts
  16. Plucked instruments
  17. Pluto & dwarf planets
  18. Plymouth
  19. Po river & tributaries
  20. Podgorica
  21. Poetry
  22. Poetry anthologies (various poets)
  23. Poetry by individual poets
  24. Pointe-à-Pitre
  25. Pointillism
  26. Poitiers
  27. Poitou
  28. Poitou-Charentes
  29. Poland
  30. Polar regions
  31. Polesine
  32. Police & security services
  33. Police law & police procedures
  34. Police law: preliminary injunction
  35. Polish
  36. Political / legal thriller
  37. Political activism
  38. Political campaigning & advertising
  39. Political control & freedoms
  40. Political corruption
  41. Political economy
  42. Political geography
  43. Political ideologies
  44. Political leaders & leadership
  45. Political oppression & persecution
  46. Political parties
  47. Political science & theory
  48. Political structure & processes
  49. Political structures: democracy
  50. Political structures: totalitarianism & dictatorship
  51. Political, socio-economic, cultural & strategic groupings
  52. Politics & government
  53. Pollution & threats to the environment
  54. Pollution control
  55. Polymer chemistry
  56. Polynesia
  57. Pompeii / Herculaneum
  58. Ponapean
  59. Pondicherry
  60. Pontarlier
  61. Pontevedra (City)
  62. Pontevedra (Province)
  63. Pontivy
  64. Pontoise
  65. Pop art
  66. Pop music
  67. Popular and recreational mathematics
  68. Popular astronomy & space
  69. Popular beliefs & controversial knowledge
  70. Popular culture
  71. Popular economics
  72. Popular medicine & health
  73. Popular music
  74. Popular philosophy
  75. Popular psychology
  76. Popular science
  77. Population & demography
  78. Population & migration geography
  79. Pordenone
  80. Port of Spain
  81. Port Said
  82. Port-au-Prince
  83. Portland (ME)
  84. Portland (OR)
  85. Porto
  86. Portraits & self-portraiture in art
  87. Portugal
  88. Portuguese
  89. Positive psychology
  90. Post-Impressionism
  91. Poster art
  92. Postmodernism
  93. Potenza
  94. Potomac river & Chesapeake Bay
  95. Potosi
  96. Pottery, ceramics & glass crafts
  97. Poultry farming
  98. Poverty & precarity
  99. Practical applications of information technology
  100. Prades
  101. Pragmatism
  102. Prague
  103. Prairies
  104. Prato
  105. Prayer & prayerbooks
  106. Prayers & liturgical material
  107. Pre-calculus
  108. Pre-clinical medicine: basic sciences
  109. Pre-Raphaelite
  110. Pre-school & kindergarten
  111. Precious metal, precious stones & jewellery: artworks & design
  112. Pregnancy, birth & baby care: advice & issues
  113. Prehistoric styles
  114. Prehistory
  115. Presentation graphics software
  116. Presov Region
  117. Pressure groups, protest movements & non-violent action
  118. Pretoria
  119. Primary & middle schools
  120. Primary care medicine, primary health care
  121. Primary sources of law
  122. Prince Edward Island
  123. Prince Edward Island: Charlottetown Area
  124. Prince Edward Island: North Shore & Prince Edward Island National Park
  125. Prince Edward Island: South Shore
  126. Prince Edward Island: Summerside Area
  127. Printing & reprographic technologies
  128. Prints & printmaking
  129. Prison law
  130. Prisoners of war
  131. Privacy & data protection
  132. Privacy law
  133. Privas
  134. Private construction & engineering law
  135. Private international law & conflict of laws
  136. Private or civil law: general
  137. Privatization
  138. Probability & statistics
  139. Probation services
  140. Process engineering technology & techniques
  141. Procurement law
  142. Product design
  143. Production & industrial engineering
  144. Production & quality control management
  145. Professional qualifications for hunting / shooting
  146. Prog Rock
  147. Programming & scripting languages: general
  148. Programming techniques
  149. Project management
  150. Project management software
  151. Project-based learning
  152. Property & real estate
  153. Property law: general
  154. Prosthetics
  155. Protection of historic buildings & cultural assets
  156. Protestantism & Protestant Churches
  157. Protozoa
  158. Provencal
  159. Provence
  160. Provence-Alpes-Côte d’Azur
  161. Provence-Alpes-Côte d’Azur: Places of interest
  162. Providence
  163. Province of Medio Campidano
  164. Province of Ogliastra
  165. Province of Verbano Cusio Ossola
  166. Provins
  167. Prussia
  168. Psychedelic
  169. Psychiatric & mental disorders
  170. Psychiatric nursing
  171. Psychiatry
  172. Psychic powers & psychic phenomena
  173. Psychoanalytical & Freudian psychology
  174. Psycholinguistics & cognitive linguistics
  175. Psychological methodology
  176. Psychological testing & measurement
  177. Psychological theory, systems, schools & viewpoints
  178. Psychological thriller
  179. Psychology
  180. Psychology of ageing
  181. Psychology of gender
  182. Psychology: emotions
  183. Psychology: sexual behaviour
  184. Psychology: states of consciousness
  185. Psychology: the self, ego, identity, personality
  186. Psychopharmacology
  187. Psychosomatics
  188. Psychotherapy
  189. Psychotherapy: child & adolescent
  190. Psychotherapy: counselling
  191. Psychotherapy: couples & families
  192. Psychotherapy: general
  193. Psychotherapy: group
  194. Public administration
  195. Public construction law
  196. Public finance & taxation
  197. Public finance accounting
  198. Public health & preventive medicine
  199. Public health & safety law
  200. Public international law