Personally, I've bought quite a few (non-fiction) books eBooks.com, all of which can be downloaded as DRM-free PDF and EPUB files. Not their whole catalog is av

Personally, I've bought quite a few (non-fiction) books eBooks.com, all of which can be downloaded as DRM-free PDF and EPUB files. Not their whole catalog is available in DRM-free editions, but enough to satisfy my needs are.