The book is useful Tatsy. But you don't need it. I enjoyed it, and it did give some good insights. Also tells Trimpeys story of how he founded RR. Also, he has always says AVRT came about by listening to what all the drinkers he talked to over the years had in common with each other in what was stopping them achieving the goal of abstience
The book reinforces how to recognise the AV both in thoughts and feelings.
The BIG PLAN is just the commitment you make to never drink again...no matter what.
I enjoyed reading it.