In reply to Howard J:
All good points and no offence taken.
In our defence I can only offering the following:
1. Andy and I are both dyslexic. So we can't effectively proof read our writing.
2. A professional proof reader would have solved this, but for a book that is likely to make a few hundred quid a year rather than a few thousand this wasn't even an option.
3. We could have gone with a publisher and they would have knocked it into shape, and I got a offer. They estimated the cost in the shops would be £40 (full colour with lots more photos). This price is the opposite of what I wanted to do. So we split the photos from the book and offered it as cheap (ebook, minimum number of critical images - Amazon charge us per kb), and free (website, mass of images, little text).
4. People have liked the book and have sent corrections, so I hope to upload a new version with fewer typos sometime.
With over 1000 images, I think the website is now the most extensive educational climbing site on the web.
All the best, and all comments welcomed.