Simon PJ's Role in the Development of Haskell

The book about implementing functional programming somehow seems to have had a very low print number. It was also not the time when everybody had PDFs floating around the internet anyways. So at some point, I think Simon had to get the book scanned so that you could distribute PDFs of it later on because it had gone out of print. Yeah, it was incredible. To be amongst this proof of eminent researchers doing really groundbreaking stuff with functional programming was quite amazing.