This practical and accessible text is designed to make data science approachable for learners at every stage. Created through collaboration among educators and practitioners, the book builds a strong foundation by connecting essential theory with hands practice. It covers fundamentals, statistics, visualisation, machine learning, deep learning, NLP, time series analysis, and responsible AI. Designed especially for students, fresh graduates, and curious learners, it aims not to overwhelm but to empower. This book serves as a clear, supportive companion for anyone beginning or advancing their journey in data science.