Book suggestion for a friend addicted to cocaine?

He is coming to terms with his problem, but still is yet to make the decision to want to quit. He comes up with a lot of excuses as to why he can't quit. He feels that he is fundamentally flawed — as if it is pointless to be sober. I want him to see that a sober life is a better life, and that he is capable of great change.

He seems to resonate with childhood trauma as being a reason for his addictions. I believe his father abused him more than he tells. So an emphasis on trauma could pull him in. But he also needs tangible methods towards recovery. He needs to see that he can rise above it. It would be great if it was specific to cocaine, or addictive personalities which he believes he is.

I know I can do more than send him a book — and I am. But I think it can help in my approach. I just want to give him something to think about and turn to. I've sent him various books in the past. Not on addiction specifically, but philosphy. More so just fun table books for him. But now I'm ready to be more direct with him. I know him on this level, and I feel he's more depressed than he shows. I'm afraid of what might come next.

I've considered Gabor Mate's 'In the realm of hungry ghosts', however I'm afraid it might not be direct enough for him at this time. But I like the essence of that book. Maybe it is the right book, I'm not sure.