Illiterate, obscene and insulting it may be, but it is also environmentally friendly. Blasted into the floor-grime of a seedy Prestwich back street by a power-cleaner. I've seen ads created using this method - most recently stencilled ads for FC United's community share scheme - but this is a graffiti first for me. Next up, more rude graffiti, and another unique media used to create it. Thanks to Paul Whositsnexttome for the pic.
I'm cheating slightly here as I'm only a hundred or so pages into this, but it's all good so far. Ticks lots of boxes for me; index - tick, footnotes - tick, bibliography - tick, discography - tick, only £3 from Fopp - tickety tick. It's wide-ranging, all-encompassing and for Doctor Who fans of A Certain Vintage features Whoberfan (and composer of the K-9 and Company theme music) Ian Levine in a prominent role. Best of all, though, was the revelation that there was a disco/high-NRG cover of this:
Which, given the double entendre implicit in the title, is not surprising. Listen for the 'guitar' break in the cover.