This textbook provides undergraduate students with comprehensive and accessible instruction in the fundamentals of chemometrics. This branch of analytical chemistry is devoted to the optimisation and implementation of analytical methods and the use of statistical and informatic tools. Readers will receive detailed and practical training in how to devise efficient and reliable analytical methodologies using experimental design and signal calibration. They will also learn how to extract meaningful information using multivariate data analysis. The exercises contained within the volume will provide easy-to-follow standard protocols and guide students in the use of the valuable and freely available open-source software CAT (Chemometric Agile Tool).This book is a much-needed tool for undergraduate students in the modern academic environment. The theoretical and practical guidance it provides, alongside the dedicated software, is tailored to bridge any gaps in formal instruction and help inexperienced students excel in the field of chemometrics.