You can e-mail at jcollins@free-energy.co.uk

Any questions about the books available, the web site or anything else.

I no longer use the post box address and have removed it from my web site. If you do write to me at the old address I will not receive it and it will presumably be returned to you as ‘undelivered’. I hope that this does not cause any problems, but I have made so little use of it that it seems pointless to keep it.