In this section, we will cover two basic topics. Firstly, we will discuss the logistics of the book, explaining how it is organized and is proceeded. Secondly, we will provide a brief summary of the book. At the outset, we will introduce the concept of probability and its significance in information technology (IT)Information Technology (IT). Furthermore, we will showcase how probability plays a role as a critical tool in diverse applications across several fields. Finally, we will provide an overview of the specific topics to be covered in the book.