If you want to learn how to use Linux, but don't know where to start then keep reading.The truth is: Shifting to the Linux operating system is quite a daunting task, especially for long-time Windows users. They get accustomed to doing things in a certain way and cannot make changes easily.Windows users face a lot of challenges when they start using Mac OS X for the first time. Thus, if there is a guide available in the market in the form of an eBook, it is always good to use it.