In this book, we tried to include all the basics of R as a programming language as well as the basics of data cleaning, statistics, and data manipulation. In doing so, we wanted the newcomers to find an easy entry to the field. We also tried to be as comprehensive as we could and included almost all major methodologies. For every method, we started with the basics, explaining the main concepts, the essential techniques, and basic functions. In subsequent chapters, we went deeper into advanced methods that are at the forefront of novel methodological innovations. We also used real-life learning analytics data and made it readily available to researchers. To do so, we collaborated with world-renowned researchers, package developers, and methodological experts from other fields to offer an unprecedented resource on novel topics that are hard to find any resource for.