Direct Indexing, Simple Indexing, and Angular Indexing

what is pre-indexing

what are the differents between preindexing and post indexing?

Pat F. Booth has written:

'Choice and form of entries' -- subject(s): Corporate headings (Cataloging), Indexing, Names, Personal (Cataloging), Programmed instruction, Subject headings

'Training in indexing' -- subject(s): Indexing

'Indexing the Manual of Good Practice'

'Documents, authors, users, indexers' -- subject(s): Cataloging, Indexing, Programmed instruction

'Indexing' -- subject(s): Indexing

Are forecasting and indexing ever used together