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Suboptimal Subject Categories
Subject Indexing > Problems
Users expect subject categories to be size-balanced, with approximately equal number of items in each category & subcategory. 
Shouldn’t have subcategory that only contains a single item
Topic: Society, Manners & Customs
Sub-Topic: Sex and Religion
I see this traversing the yahoo directory tree, where some directories have one subdirectory with 10 items next to another subdirectory with 10,000 items
Idiosyncratic: under Soc, Manners & Cust we see the subtopic Venom?