Via Hacker News. Reginald Braithwaite (@raganwald) has released his book "How to Do What You Love & Earn What You’re Worth as a Programmer" on LeanPub, starting from $0, and it's Today Only.
How it works is that the "suggested price" is $4.99, however it allows you to use a slider to adjust how much you are willing to pay. The minimum price would be $0 for today only. Still, if you have the money and would like to reward the author — by all means pay the suggested price (or more if you are generous). However if you are a cash strapped programmer been eating Mi Goreng for the last 2 weeks (or just an ozbargain-badge-bearing cheapskate), here's an option for you to get this book for FREE.
If the author has resorted to selling books for a few cents, I question the quality of the content???