Additional content

There will be two categories of additional content added here.

Firstly, the parts indicated as cut out of the final Chapter 16 (due to the book becoming a bit too fat and that content being either duplicative of Chapter 3 or probably of less interest to most readers).

Secondly, updates and further thoughts as I find time to add them in. (I already have plenty of further thoughts but deciding how to present them has to be done before putting them out here.)

Free book chapters (pdf files help)
(not all are available here)