[StavrosK]

I wrote a short Python tutorial (http://www.korokithakis.net/tutorials/python/) which I packaged up as a book in a few hours and put on LeanPub. I used to sell it for $2, but the LeanPub guys changed the pricing structure to minimum/recommended, so I set the recommended price at $5.

People have been buying it for $5 ever since, and I've even had some $8s and $10s. I even include a link to the tutorial right on the book page, because I don't think it's worth even $2, but apparently people do!

Anyway, I love LeanPub so much.