Nice! I hadn't really thought about audiobook versions of free books.
I wanted to see how many modern books it has (Gutenberg etc. is valuable, but often I'd prefer modern writing), but it says that eg. Shelley's "A Defence of Poetry and Other Essays" is from 2006. Shelley died at least a few years before 2006. Maybe the year is the recording date?
If so, that's not that useful to me, I'd want to see the date of the work, not the recording.