The website www.montanhabooks.com was launched last year. It's aim is to publish and sell books about Portugal – but not only.
There’s also a general fiction and non-fiction section, a painting section, as well as a travel and short story page where you can download stories for free.
The website will expand over time. Most books/downloads are currently in English, but there will be German and Portuguese publications in the future.
Hopefully you might find something interesting – and affordable!