Dave
I don't need any help with writing at the moment, thanks. Two ways that anyone who wishes could help:
Have a read through the drafts as I post them and offer any suggestions for omissions/improvements/inaccuracies which occur to them.
Look at images I have used (all of which I consider temporary candidates), and offer suggestions for alternatives which are copyright-free or for which permission to use might easily be obtainable.
(Webmaster note: Chris gave a link to his first draft of part 1 of his project above. It's stored on Box. If you are unable to access his file, let me know and I'll provide.)