InDesign book file (.INDB) total page count
If you're making a book using a book file (.INDB), the InDesign Book file panel should have a total page count. Sometimes the page count is not accurate, especially if you have frontmatter to a book that uses roman numerals and start with 1 later in the book. It would be nice if the absolute total number of pages showing somewhere on that panel. We publish books and have to stick to strict signature breaks for presses, so total page count is very important information to us, and it'd be nice to quickly get that information instead of having to add up each individual document's page count to get the total in a book.
Open the Pages tab (Window>PAGES) and the total number of pages is at the bottom of box.
There is a workaround - simply use the book file (INDB) to export a PDF which includes all the parts and in the PDF it is easy to see the total (absolute) page count.
There are workarounds, but I agree, this is basic information we should have.