The (614 page) eBook can be purchased in PDF format for use on almost all devices. That download is available from either Gumroad or Paddle . Note that while both sources have always accepted credit card payments and Gumroad has recently caught up with Paddle, to become PayPal-friendly also).
On the 30th of October 2015, the hard-copy Edition of Volume 1 was released for general sale. The hard copy Edition of Volume 2 was published in 2017.
The ‘Concise’ (hard copy) Edition of Volume 1, consists of 236 full colour pages, while the hard copy Edition of Volume 2, runs to 312 full colour pages. Both hard copy books are spiral bound (so they open flat, without ever straining or breaking the spine) and they have cello-glazed full colour 300 gsm cardboard front and back covers. So, our hard-copy books are designed for regular use as a ready-reference source.
Stocks of both hard copy editions of Volumes 1 and 2 have now sold out, although an electronic (pdf) Edition of Volume 1 is still available for download from Gum Road.
Happy Collecting and Researching