Filtering and sorting archive.org books by page count

### Proposal

This feature request is for the archive.org website, not openlibrary.org.

Can the developers please make it possible to sort and filter [archive.org](http://archive.org/) books by the number of pages?

For example, I'd like to be able to search [archive.org](http://archive.org/) for biography books (subject:"Biography"), filtering out from the search results any book that is less than 400 pages long, and then sort the books in the search results by the number of pages, in ascending order.

Thank you for considering this suggestion.

### Justification

### Breakdown

#### Requirements Checklist

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#### Related files

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#### Stakeholders

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#### Instructions for Contributors

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