Aye, I agree with that, but from what I've read he hasn't 'created' that many parts of the book, rather just written around factual events by creating dialogue and so on for particular situations that did actually happen.
The problem he faced is that the people who could remember the conversations had/have their own agendas, and you could end up with an even more fictionalised account of events than the one he presented.
Its fictionalised account of the events. As you say, some of the situations did happen, some have been written about in players autobiographies, but David Peace has made up most, if not all of the dialog. So much so that Johnny Giles took the publishers to court and won.
The majority of the book is played out in Cloughs minds, which i think tells you all you need to know about how much of a true account this is.
If you read the book, you would believe that Clough was a chain smoker and Alcoholic in the early 70's - his wife has said that his drink problem and smoking only started in the late 70s/early 80s. Hes also portrayed as a heavy swearer, which again those who knew him said wasn’t true.
There is a scene in the book where Clough burns Don Revies desk in front of his son, Nigel. Again, this didn’t happen.
I can understand why the Clough family are so unhappy with the book, though i beleive the film paints Clough in a much better light.
Despite that, the book is fantastic. I think i will go and see the film this week.