It is now the end of 2015 and Amazon has my self-published book advertised and available for purchase. Seems like many years have gone by so this is a moment of relief as well as offering a sense of birthing of my baby. The front page description of this blog has a clickable link to the book on Amazon. Now comes the task of marketing which looks to be daunting as this blog has not created any discernable traffic of interest in the project. I now turn my attention to search engine optimization and utilization of the new social media system. The potential audience for the book should be anyone trying to learn something rather difficult or anyone else tasked with the job of teaching something difficult. Full comprehension is argued here to depend somewhat on the development of tacit knowledge as described by Michael Polanyi.