This is a very good guide to getting started with linux and ubuntu given by MakeUseOf.Com Read this if you want to learn about ubuntu operating system or any linux based operating system. It can be your hand note for learn and tech simple basics about linux kernel and ubuntu operating system. Now a days most of server and system are build with linux kernel ubuntu os and it growing everyday. this is why we build this beautiful looking book app for everyone gain knowledge about basics of this Operating system.