If you don’t ‘do’ Amazon for Kindle and paperback, you can find fencing books on Kobo in e-pub format via the Kobo book stores internationally. You can search by author or title.

Direct links for the Kobo UK store:

The Newcomer’s Guide to Competition Fencing: Modern Olympic Fencing tournaments for Beginners

Winning at Épée: Techniques for the Shorter Fencer

The Art of Foil Fencing

Modern Olympic Fencing: Questions and Answers

Also still on Amazon in paperback and Kindle editions.