Hello Terence, can I ask a few questions? What is the trick to getting the elonex to show up on a mac book? When I plugged it in to the usb, nothing changes, no device shows up etc etc. Do I have to download software before being able to access it? and finally, how do I delete the already installed 100 books? It would really help me out, I asked the bloke at waterstones and he said it works on macs...but he didn't know how!