From an e-mail conversation:
Me: (in response to a request for an authentic source for some Celtic information) What, if anything, is verifiably authentic when it comes to the Celts? Pesky Celts, doing stuff and not writing it down.
Ceri: And having different names for everything, damn them. They’re worse than people on the internet, misspelling everything.
And if you’ve ever tried to do any sort of Celtic research (and in so doing sought to avoid Llewellyn authors such as Edain McCoy like the plague), you too know this pain…