Part I. Introduction -- Chapter 1. Gas Chromatography and Mass Spectrometry: The Technique -- Chapter 2. Statistical and Mathematical Models in Food Authentication -- Part II. Authentication of Food -- Chapter 3. Cereals, Pseudocereals, Flour and Bakery Products -- Chapter 4. Edible Oils and Fats -- Chapter 5. Milk and Dairy Products -- Chapter 6. Meat, Eggs, Fish and Seafood -- Chapter 7. Honey and Bee Products -- Chapter 8. Fruits, Vegetables, Nuts and Fungi -- Chapter 9 -- Herbs and Spices -- Part III. Authentication of Beverages -- Chapter 10. Fruit Juices -- Chapter 11. Coffee and Tea -- Chapter 12. Wine, Beer and Alcoholic Beverages -- Part IV. Outlook -- Chapter 13. Concluding Remarks and Future Perspectives. .