Monograph is too much of a catch all type. May I suggest breaking certain types out from it.
Collected Sermons
Reference
Novels
Atlas
Liturgy
Devotional
eg. to create a collection which looks something like I would expect from a shelf of monographs I have to use the very complex: type:monograph -perseus -novel -commentary -title:"Lexham" -title:"book of common prayer" -title:"Nicene and post" -title:"Workbook" -title:"Outlines" -title:"a treasury of great" -title:"sermon outlines" -quotations -illustrations -title:"works of" -edition:ebook -questions -every -title:"Sermons" -atlas -map -devotional -title:"Volume" -collected -title:"questions" -title:"History"
In this "monograph" collection I have 404 books whereas I have 1652 monographs...
Also I've never managed to find a suitable filter to exclude novels without excluding all vyrso content. I'd like to include vyrso 'pop' theology but exclude novels.