A very big word

I was moving some books around and liked the shiny spine of this folder so I set it on the laser printer and took a couple of photos. I left in the reflection of the light in the window behind it because I liked the way it changed the background. So here it is! An enormously big and important word in many ways - some of us thrive on it and some of us also earn a living from being involved in it. I know that at least some of the people looking at this will recognise the folder too; it's part of the course materials on a number of Open University postgraduate education courses.