I made a number of e-books, i.e. .pdf files that can be read on-line or downloaded. They even can be printed and put in the bookshelf such that the bookshelf will sag.
Follow the links here-after to each of these e-books.
New! This latest e-book can also be ordered (at cost) as a hardback bound printed copy: Order Printed Book (but note the shipment costs)