Machine Learning Ebooks

There are lot of Machine Learning tutorials present online however, we always face one issue (the one I faced:P) that is the order of tutorial. And I believe that "Learning without a vision is a waste". Because there are so many things to learn in this world and if we gather info & learn anything without a goal, we will be going to waste our time and eventually forget what we learnt. Everyone has different opinion but this is what I believe. Hence, I have curated a list of free Machine Learning Ebooks from different sources.