book is designed for the undergraduate and postgraduate students of basic and applied sciences and the analysts of the laboratories who analyze samples of their interests. There is great diversity in the nature of the samples to be analyzed viz. medicines and pharmaceuticals, blood and urine, food and drinking water, pesticides and fertilizers, cosmetics and perfumes, soaps and detergents and many more. Nevertheless, there is a basic thread of similarity in the analysis of all such substances, despite so great diversity. This 'thread of similarity' has its origin in the logic that quantitative analysis of any substance involves the same basic principles and the gamut of operations e.g. withdrawing genuinely representative samples and aliquots, weighing samples and reagents, filtration, distillation, calibration, titration and so on. All these aspects in turn come under the domain of the subject of analytical chemistry. Therefore, an understanding of the subject of analytical chemistry shall help an analyst, irrespective of his or her being a student or researcher or professional, in acquiring mastery in the task. This book has been conceived and written keeping primarily this aspect at the back of the mind. The Chapters of the book are organized in four Parts. The first one is for the fundamentals of quantitative analysis. The second one focuses on the preparation of standard solutions of the reagents that find frequent use in a quantitative analysis laboratory. The third part is devoted to instrumental methods of analysis, while the last one is on errors which often creep in the analysis, sometimes inadvertently, and mar the results that are eventually reported. Derivation of a formula used in calculations following an analysis is explained in lucid terms along with explicit illustrations for the purpose of better comprehension. Model calculations with worked out solutions are aimed at enabling the readers in handling such problems at ease.