FAQ? Re: Why did they publish 'blank' pages

We've been through THIS one often, and recently. There are actually two questions: Q1: Why are the blank pages marked "intentionally blank"? A1: To make it clear that they are NOT blank due to duplicating errors. A2: Because saying that a page is blank by mistake would make the printer lose face. Q2: Why are there blank pages? A1: Due to the impossibility of planning accurately, and changes that might involve increasing or decreasing the number of pages, extra pages are allowed for to cover any increase. A2: Printing and binding of a section using some technologies results in sections (or "signatures") that must be multiples of a number (4, 16, etc.) Therefore, if the actual desired length is not zero modulus that multiple, there will be extra pages. A3: Certain rigid "style"s mandate that a section must ALWAYS start on a right hand, or odd numbered, page. If a section has an odd number of pages, then a blank must be added for alignment. A4: So that you'll have a place to scribble notes, other than on the margins of the printed pages. A5: An idea pushed by the paper mills (see also "paperless office")