"A Prayer For Owen Meany" by John Irvine (also from Toronto)
This book, by the author of "The Ciderhouse Rules" and "The World According to Gorp", is one of my favourite books of any I have read.
It is a novel, rather than a "how to" recovery book, but it is so funny/sad/emotional and spiritual all at the same time. It is just GREAT reading. And it teaches many many lessons relevant to our recovery.
No kidding, it's really, really, really good.