Thanks Mark -- I had noticed that the BTs for all types I mentioned were formulated as 'Imaginary', I just wasn't sure if there was an intended distinction being drawn between Fictitious entities and Imaginary entities. 

in solidarity, 

Netanel Ganin
Metadata Coordinator -- Hebrew Specialty
Brandeis University
(781) 736-4645 / [log in to unmask]

My pronouns are he/him/his

On Thu, Mar 2, 2017 at 2:02 PM, Ehlert, Mark K. <[log in to unmask]> wrote:
From: Program for Cooperative Cataloging [mailto:[log in to unmask]GOV] On Behalf Of Netanel Ganin
Sent: Thursday, March 02, 2017 11:20 AM
> ... I'm curious if there's any instruction out there for the 'Imaginary' constructed subject headings.
> Examples:
> Lyra (Imaginary place)
> Rama (Imaginary space vehicle)
> Sweet Valley Middle School (Imaginary organization)
> Necronomicon (Imaginary book) 
> ...
> I'm specifically asking if there's a reason or instructions as to why
> they're qualified as 'Imaginary' as opposed to 'Fictitious'

The qualifiers may well be based on the BT heading.  For instance, the 550 in the first heading above is "Imaginary places."

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