If you buy it on Amazon, you can read it “on the cloud”, ie straight from your computer after your purchase.
Amazon also has some good reviews of the Essay if you are interested in reading them before you buy it. I’ve bought it, enjoyed it, but also felt that it would have been so much better if it was a small, maybe 100-page book. At the same time, it’s less than a cup of starbuck’s coffee, and proved for some entertaining morning reading.
Hope this helps,