Library of Congress classification, in use in Payson Library, puts Philosophy at the beginning of the B section, Note that the sub-areas are specific to parts of the discipline.
Here are some of the major subdivisions for Philosophy:
B1-5802 Philosophy (General)
B69-99 General works
B108-5802 By period (Including individual philosophers and schools of philosophy)
B808-849 Special topics and schools of philosophy
B850-5739 By region or country
B5800-5802 By religion
BC25-39 By period
BC60-99 General works
BC171-199 Special topics
BD10-701 Speculative philosophy
BD10-41 General philosophical works
BD143-237 Epistemology. Theory of knowledge
BD300-450 Ontology (Including being, the soul, life, death)
BD493-701 Cosmology (Including teleology, space and time, structure of matter and plurality of worlds)
BH 1-301 Aesthetics
BJ 1-2195 Ethics
Peter Adamson, Professor of Philosophy at the LMU in Munich and at King's College London, takes listeners through the history of philosophy, "without any gaps." The series looks at the ideas, lives and historical context of the major philosophers as well as the lesser-known figures of the tradition.
Everyone confronts philosophical issues throughout his or her life, but very few have the opportunity to learn about philosophy, a subject that is usually taught only at the college level. AskPhilosophers aims to bridge this gap by putting the skills and knowledge of trained philosophers at the service of the general public.