Contents 1. Introduction . 1.1. General . 1.2. Structure . 2. Continuous metal films , 2.1. Introduction . 2.2. The theory of thin-film conduction in metals 2.3. Experimental measurements . 2.4. Practical applications . 3.1. Introduction . 3.2. D C conduction mechanisms . 3.3. Breakdown . 3.4. AC conduction mechanisms . 3.5. Temperature coefficient of capacitance 3.6. Preparation . 3.7. Applications . 4. Discontinuous metal films