Part I: Enzyme catalysis - a perspective -- Enzymes -Their place in Biology -- Enzymes - Historical aspects -- Exploiting enzymes – Technology -- On enzyme nomenclature and classification -- Hallmarks of an enzyme catalyst -- Origins of enzyme catalytic power -- Origins of enzyme catalytic power -- Which enzyme uses what trick? Some remarks -- Structure and catalysis: Conformational flexibility and protein motion -- Part II: Enzyme kinetic practice and measurements -- Chemical kinetics – Fundamentals -- Concepts of equilibrium and steady-state -- ES complex and pre-steady-state kinetics -- Principles of enzyme assays -- Good kinetic practices -- Quantification of catalysis and measures of enzyme purity -- Henri-Michaelis-Menten equation -- More complex rate expressions -- Enzyme kinetic data - Collection and analysis -- Part III: Elucidation of Kinetic mechanisms -- Approaches to kinetic mechanism – Overview -- Analysis of initial velocity patterns -- Enzyme inhibition analyses -- Irreversible inhibitions -- Reversible inhibitions -- Alternate substrate (product) interactions -- pH Studies with enzymes -- Isotopes in enzymology -- Isotope exchanges at equilibrium -- Isotope effects in enzymology -- From kinetic data to mechanism and back -- Part IV: Chemical mechanisms and catalysis -- Chemical reactivity and molecular interactions -- Acid-base chemistry and catalysis -- Nucleophilic catalysis and covalent reaction intermediates -- Phosphoryl group chemistry and importance of ATP -- Enzymatic oxidation-reduction reactions -- Carboxylations and decarboxylations -- Electrophilic catalysis and amino acid transformations -- Integrating kinetic and chemical mechanisms – A synthesis -- Part V: Frontiers in enzymology -- Regulation of enzyme activity -- In vitro versus in vivo - Concept and consequences -- Future of enzymology – An appraisal -- Closure - Whither Enzymology.