Inevitably, in a book such as this, there will be mistakes that have escaped our notice and that of our team of proofreaders.

If you spot a mistake (or indeed if you have a question), please do contact us using the "Contact Us" page on this website in the first instance.  Or email us directly at, if you prefer.

We will make any genuine corrections that come to our attention, and we will publish the corrected pages as downloads, on this page.

**No corrections to date**