Though I have not had the pleasure of reading Charles Matthews' Teach Yourself Go book, I do teach myself Go. In truth, this is not a solitary pursuit because many people have helped me. Like most people, I have not taken formal lessons. I have been the beneficiary of many kind reviewers of my games on KGS and some free lessons there. Sensei's Library becomes ever more useful as it deepens and extends. -- Hu of KGS