Data science is becoming widely used these days. This book is basically about learning NumPy library and marks the start of the journey for beginners to learn data science. Numpy is one of the main python libraries used by data scientist and machine learning engineers. It is the basic building block of any model or process. I have seen a number of people learning data Science. Many rush while learning the basics but spend a huge time in deeply understanding the algorithms and models. But do you really believe that it is possible without a clean data. Uncleaned data will never produce the true and accurate results. So this book teaches you where you need to start. This will teach you how to input data from various sources. how to clean it, arrange it and then pass it to next library.