obwan,
The U.K Aeronautical Information Publication, (IAIP), used to be called 'The U.K. Air-Pilot'.
It was a single-volume, loose-leaf type document, which lived in a
HUGE red ring-binder.
I can clearly remember the look of sheer terror on the faces of my course-mates on 24th September 1979, when they first set eyes on it, piled majestically on those CATC desks, along with MATS Pt.1 and The ANO.