Back on track + a

Today is my 1st day of nofap and another thing is that I came across a link on this site about a book that explains how the brain is affected whilst on nofap recovery. It explains how it can convince someone to relapse and how can one overcome this when it happens. I saved the link so I could read it properly when I had time but unfortunately i lost it and I have tried to search for it on this site but I cant find it. Can you guys be helpful enough to name or paste a link to any sites or e-books regarding porn recovery and the brain functionality, this will be helpful. Maybe I will see this link on the list posted to this thread. It will be much appreciated, thanks a lot! peace