The Present book takes a student from ?unknown to known? and ? simple to complex? principles of Data Science. This book is user-friendly, thought provoking and stimulating. It helps in clearing the cobwebs of the mind and the subject. The style used is lucid and un-adulterated. What stands out is the stark simplicity with which the ideas have been portrayed. A good book should teach the customary and effective ways to structure your code in such a way that data engineering is not havoc. Python is an object-oriented programming language that is used in this book . The book is divided in to 4 Units:- Unit-1 has 15 chapters on Artificial Intelligence. Unit-2 has 7 chapters that explain Machine Learning and IOT. Unit-3 has 10 chapters each focusing on DEEP Learning. Unit-4 has 1 chapter that explain Data Sciences.