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PSP Subject Discovery Panel
Michael Olenick
Business Analyst
michael.olenick@bowker.com
Self-Portrait with Classification
• BIO025000 BIOGRAPHY & AUTOBIOGRAPHY /
Editors, Journalists, Publishers
• LAN025030 LAN...
2
Assign the most specific, non-redundant
subject(s) from the list(s) you are using.
For example:
BISAC
• ART015030 ART / European
• ART015080 ART / History / Renaissance
• ART016000 ART / Individual Artists...
4
Where My Work Goes…
5
Where My Work Goes…
• www.BooksInPrint.com: libraries, retailers, online
discovery
• ONIX/ASCII: wholesalers, retailers, t...
7
Libraries
• LCSH
subjects
• Deweys
• LC Class
Booksellers
• BISAC
• BIC
• Thema
Customer Preferences
Why Standardized Subjects?
• Uniformity of usage
• One place for all books on topic (standardization of
terminology)
• Spe...
Do I Need to Tell You What BISAC Subjects Are?
• North American book industry standard maintained by
BISG
• Issued annuall...
BISAC Subjects
ARC000000 ARCHITECTURE / General
ARC022000 ARCHITECTURE / Adaptive Reuse & Renovation
ARC023000 ARCHITECTUR...
• First global subject category system for the book trade
• Not a replacement for BISAC (possibly for BIC)
• Maintained by...
Subject Heading
DNBS Biography: Sport
SFC Baseball
• First global subject category system for the book trade
• Not a repla...
Qualifier
1KBB-US-NAKC New York City
Subject Heading
DNBS Biography: Sport
SFC Baseball
• First global subject category sy...
Qualifier
1KBB-US-NAKC New York City
Subject Heading
DNBS Biography: Sport
SFC Baseball
• First global subject category sy...
Code Heading
L Law
LA Jurisprudence & general issues
LN Laws of specific jurisdictions & specific areas of law
LNJ Enterta...
Geographical Qualifiers
1D Europe
1DS Southern Europe
1DST Italy
1DST-IT-T Central Italy
1DST-IT-TS Tuscany
1DST-IT-TSF Fl...
What Publishers Should Provide
• At least 1 valid code
• From the latest version of that subject schema
• Most specific su...
How Many Subjects Does an ISBN Need?
• No correct number
• Do not force multiple subjects
• New information is valuable
• ...
Sample Search Results Titles Pages
general fiction 63126 2254
Asian American fiction 412 15
What audience is this title
mo...
To Map or Not to Map?
20
Benefits Drawbacks
Utilizes previously classified data Cannot replicate accuracy or detail of
dir...
Links
• BISAC – US industry standard for over 20 years maintained by
the Book Industry Study Group
https://www.bisg.org/bi...
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PSP Subject Discovery

A discussion of the various subject classifications for published books and ebooks. This slide deck provides insight into the type of subject classification to include, and the depth needed for discovery purposes. Includes BISAC, BIC and Thema subject classifications.

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PSP Subject Discovery

  1. 1. PSP Subject Discovery Panel Michael Olenick Business Analyst michael.olenick@bowker.com
  2. 2. Self-Portrait with Classification • BIO025000 BIOGRAPHY & AUTOBIOGRAPHY / Editors, Journalists, Publishers • LAN025030 LANGUAGE ARTS & DISCIPLINES / Library & Information Science / Cataloging & Classification • BUS070060 BUSINESS & ECONOMICS / Industries / Media & Communications • LAN026000 LANGUAGE ARTS & DISCIPLINES / Public Speaking • OCC010000 BODY, MIND & SPIRIT / Mindfulness & Meditation 1
  3. 3. 2 Assign the most specific, non-redundant subject(s) from the list(s) you are using.
  4. 4. For example: BISAC • ART015030 ART / European • ART015080 ART / History / Renaissance • ART016000 ART / Individual Artists / General • ART035000 ART / Subjects & Themes / Religious • ARC016000 ARCHITECTURE / Buildings / Religious Library of Congress • Michelangelo Buonarroti, 1475-1564--Criticism and interpretation. • Cappella Sistina (Vatican Palace, Vatican City) • Bible. Old Testament--Illustrations. • Mural painting and decoration, Italian--Vatican City. • Mural painting and decoration, Renaissance--Vatican City. 3
  5. 5. 4
  6. 6. Where My Work Goes… 5
  7. 7. Where My Work Goes… • www.BooksInPrint.com: libraries, retailers, online discovery • ONIX/ASCII: wholesalers, retailers, textbook resellers • Subject schemas identified • Source identified (publisher-supplied or Bowker- assigned) • Partners decide which subjects they will use and which source they prefer 6
  8. 8. 7 Libraries • LCSH subjects • Deweys • LC Class Booksellers • BISAC • BIC • Thema Customer Preferences
  9. 9. Why Standardized Subjects? • Uniformity of usage • One place for all books on topic (standardization of terminology) • Specificity depends on the list • Grouping data together for – Analytical purposes – Data retrieval – Sales – Shelving 8
  10. 10. Do I Need to Tell You What BISAC Subjects Are? • North American book industry standard maintained by BISG • Issued annually in the Fall and available on BISG site • 4499 codes/subjects grouped under 54 main sections • Mappings also available (BIC and Thema) • Subjects are hierarchical based on text • Codes are not “smart” except that first three characters reflect section • Not as specific as LC subjects but this allows for statistically significant groupings 9
  11. 11. BISAC Subjects ARC000000 ARCHITECTURE / General ARC022000 ARCHITECTURE / Adaptive Reuse & Renovation ARC023000 ARCHITECTURE / Annuals ARC024000 ARCHITECTURE / Buildings / General ARC024010 ARCHITECTURE / Buildings / Landmarks & Monuments ARC011000 ARCHITECTURE / Buildings / Public, Commercial & Industrial ARC016000 ARCHITECTURE / Buildings / Religious ARC003000 ARCHITECTURE / Buildings / Residential ARCHITECTURE / CAD (Computer Aided Design) see Design, Drafting, Drawing & Presentation ARC019000 ARCHITECTURE / Codes & Standards ARC001000 ARCHITECTURE / Criticism ARC002000 ARCHITECTURE / Decoration & Ornament ARC004000 ARCHITECTURE / Design, Drafting, Drawing & Presentation ARCHITECTURE / Feng Shui see BODY, MIND & SPIRIT / Feng Shui 10
  12. 12. • First global subject category system for the book trade • Not a replacement for BISAC (possibly for BIC) • Maintained by EDItEUR (free download available) • Variable length, hierarchical codes Introduction to Thema 11
  13. 13. Subject Heading DNBS Biography: Sport SFC Baseball • First global subject category system for the book trade • Not a replacement for BISAC (possibly for BIC) • Maintained by EDItEUR (free download available) • Variable length, hierarchical codes • Consists of subject headings… Introduction to Thema 12
  14. 14. Qualifier 1KBB-US-NAKC New York City Subject Heading DNBS Biography: Sport SFC Baseball • First global subject category system for the book trade • Not a replacement for BISAC (possibly for BIC) • Maintained by EDItEUR (free download available) • Variable length, hierarchical codes • Consists of subject headings… • …modified by qualifiers (not repeated for each subject) Introduction to Thema 13 modifies
  15. 15. Qualifier 1KBB-US-NAKC New York City Subject Heading DNBS Biography: Sport SFC Baseball • First global subject category system for the book trade • Not a replacement for BISAC (possibly for BIC) • Maintained by EDItEUR (free download available) • Variable length, hierarchical codes • Consists of subject headings… • …modified by qualifiers (not repeated for each subject) • Qualifiers used for fiction or nonfiction, adult or juvenile Introduction to Thema 14 modifies
  16. 16. Code Heading L Law LA Jurisprudence & general issues LN Laws of specific jurisdictions & specific areas of law LNJ Entertainment & media law LNJD Defamation law, slander & libel More Detail (Attention Optional) 15 HIERARCHY Subject Headings The variable-length codes are hierarchical and determine the order in which the subjects are presented. The text of the subject or qualifier does not contain all parts of the hierarchy and is meant to stand on its own when output.
  17. 17. Geographical Qualifiers 1D Europe 1DS Southern Europe 1DST Italy 1DST-IT-T Central Italy 1DST-IT-TS Tuscany 1DST-IT-TSF Florence Language Qualifiers 2H African languages 2HC Niger-Congo languages Time Period Qualifiers 3K CE period up to c 1500 3KB c 1 CE to c 500 CE 3KBF 1st century, c 1 to c 99 Educational Purpose Qualifiers 4C For all educational levels 4CD For primary education 4CX For adult education Interest Age & Special Interest Qualifiers 5A Interest age / level 5AN Interest age: from c 12 years Style Qualifiers 6B Styles (B) 6BA Baroque 6BB Barbizon school Qualifiers: Six Different Types 16
  18. 18. What Publishers Should Provide • At least 1 valid code • From the latest version of that subject schema • Most specific subjects(s) applicable • Multiple, unique subjects when necessary • Avoid subjects more general than others (especially from the same section) • All formats & editions consistently classified • Subjects should not clash with each other or with other metadata 17
  19. 19. How Many Subjects Does an ISBN Need? • No correct number • Do not force multiple subjects • New information is valuable • Redundant or general information is not 18 10
  20. 20. Sample Search Results Titles Pages general fiction 63126 2254 Asian American fiction 412 15 What audience is this title most relevant to? Are subjects consistently applied across products? Where would title be more easily discovered?
  21. 21. To Map or Not to Map? 20 Benefits Drawbacks Utilizes previously classified data Cannot replicate accuracy or detail of direct assignment Minimizes the number of schemas to be manually assigned Two things have to be correct rather than one (original assignment and mapping) Uniformity of usage (this always maps to that) Even if both things are “correct” you still get results that could be improved Can serve as a good starting point for fine- tuning Results are almost never reviewed because that negates the time-saving benefit Lots of data classified quickly (once in place) Getting it in place may take more time in the short-run Works well if going from a very specific schema to a more general schema Works okay with schemas of equal specificity; does not work from specific to general (is not “reversible”) Helpful for version upgrade (change mapping vs. changing each ISBN) Mapping must be maintained (both source and target)
  22. 22. Links • BISAC – US industry standard for over 20 years maintained by the Book Industry Study Group https://www.bisg.org/bisac/complete-bisac-subject-headings- 2015-edition • BIC – the UK equivalent of BISAC maintained by Book Industry Communication http://www.bic.org.uk/7/BIC- Standard-Subject-Categories/ • Thema – an internationalized version of BIC maintained by EDItEUR– not officially a replacement for BIC but if the uptake is strong, it effectively will be (not a replacement for BISAC) http://www.editeur.org/151/thema/ 21

A discussion of the various subject classifications for published books and ebooks. This slide deck provides insight into the type of subject classification to include, and the depth needed for discovery purposes. Includes BISAC, BIC and Thema subject classifications.

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