It’s been available in libraries and bookstores for over a century and more recently as a free eBook on the Intertubes. Of course all of these solutions had one major flaw though. You needed to be literate and willing to read the book in the first place.
Well those days are long gone with the advent of the audio book. Now there is no excuse for passing on a hot delicious serving of Darwin’s Origin Of Species. The kind folks at LibriVox have painstakingly recorded the entire book for your hearing pleasure. There is over 24 hours worth of Evolution goodness in either ogg or mp3 format. Just add the files to you iPod or whatever you use and you’re good to go.
Entire audio book here!