@jessica-mormont it depends on what format you're looking for. Some sites, such as http://www.converttoaudio.com/ offer 128kb and 256kb .mp3, as well as various other formats. The sound quality from the .aac and 256kb MP3 output is very high.

uTorrent or bittorrent, both are good!

@jessica-mormont yeah, thats harder to download. Dont know a specific website where you can download a whole book but i do know a group in facebook where they help ppl on downloading paid and restricted articles online. You just have to said them the link. Maybe thatll help?