The books listed below were written years ago. While the ideas are sound, the presentation is primitive. There were also size constraints. The books were limited to a specific number of pages in order to reach a certain price point, which meant there was not enough space to address any of the subjects in depth.
All of the books would benefit from re-editing. That has not been done because the feeling was that the original books are interesting from a historical perspective. Much of the book material is duplicated from the website, so an interested person could search the website for further material on a particular book chapter they found intriguing.
At some point in the future it is possible the books will receive the editing that would benefit them.