PHO000000 - General
PHO001000 - Subjects & Themes / Architectural & Industrial
- - -
PHO003000 - Business Aspects
PHO004000 - Collections, Catalogs, Exhibitions / General
PHO005000 - Criticism
PHO006000 - Techniques / Darkroom
PHO007000 - Techniques / Equipment
- - -
PHO009000 - Subjects & Themes / Fashion
PHO010000 - History
PHO011000 - Individual Photographers / General
PHO012000 - Techniques / Lighting
PHO013000 - Subjects & Themes / Plants & Animals
PHO014000 - Photoessays & Documentaries
PHO015000 - Photojournalism
PHO016000 - Subjects & Themes / Portraits
PHO017000 - Reference
PHO018000 - Techniques / General
PHO019000 - Subjects & Themes / Regional
PHO020000 - Techniques / Color
PHO021000 - Commercial
PHO022000 - Techniques / Cinematography & Videography
PHO023000 - Subjects & Themes / General
PHO024000 - Techniques / Digital
PHO025000 - Annuals


Hints:

Multiple subjects in this and other sections may be used to describe a work fully: for example, a book of Mexican travel photography could be assigned "TRAVEL / Mexico" and "PHOTOGRAPHY / Subjects & Themes / Regional".

Subjects beginning with "PHOTOGRAPHY / Subjects & Themes" are generally meant to be used for works containing photographs relating to the subjects and themes specified; however, these subjects can also be used for works on the techniques used to take photographs of these subjects and themes. If a subject beginning with "PHOTOGRAPHY / Subjects & Themes" is used in this way, it is recommended that a subject beginning with "PHOTOGRAPHY / Techniques" be assigned as well.