In a world in which social affairs are frequently influenced by a variety of corruptions, the necessity of learning at least the basics of correctly analysing people arises. We believe in the necessity of emphasising on acquiring at least the basic psychological skills that enable the individual to correctly read the entities before them and avoid misjudgements and false assumptions.The realm of psychology has so far provided an enormity of knowledge to those interested. If you, dear reader, decide one day to go any deeper in this realm, you are going to benefit so much from it. This would nevertheless entail a huge proportion of your time and effort, which you may not yet be ready for, but at the same time you are still inclined to seize some of this knowledge. That is why this humble guide has come to life, for you to be introduced to the essentials that enrich your primary psychological expertise and can construct a basis from which you can progress towards more professionalism in case you decide to go further into this interesting domain in the future.So, what are we providing to you in this guide? Dear reader, by the time you are done reading the following pages, you are expected to have acquired the essentials of analysing the surrounding people in accordance with two of the main rules, which are : Four-colour system The different expressions of body language