This book aims to get readers familiar with the basic concepts and theories by giving the most basic introduction to the topics for anyone interested in machine learning. “Plain” language is highly valued here to prevent beginners from being overwhelmed by technical jargon. Clear, accessible explanations and visual examples accompany the various algorithms to make sure things are easy to follow. Some simple programming is also introduced to get familiarity with Python programming language, since it is used in most of the examples.