Simon's Shop ... has closed down

I used to sell books and CD-ROMs on this website, but the online shop closed down in December 2005. Of course, you can obtain all my books (Big Bang, The Code Book, The Cracking Code Book and Fermat's Last Theorem) at your local bookshop or at Amazon. And you can find out more about these books by clicking here.

Overseas visitors can find out how to obtain books locally, including information about which translations are available.

The Code Book on CD-ROM can still be downloaded for free. Click here for details. Alternatively, you can now buy copies from Virtual Image.