FT-IR techniques are used in the research and analysis of the most common samples brought into the laboratories of polymer, semiconductor and pharmaceutical production industries. This volume intends to show beginners in modern Fourier-Transform-Infrared analysis which technique of infrared analysis should be selected and how to use it. The volume is divided into two parts. The first section of Part 1 describes the hardware of Fourier Transform infrared spectrometers and offers guidelines on how to selecte instrument settings. Section 2 of Part 1 is concerned with the theoretical and practical aspects of infrared techniques such as IR-microscopy. ATR, diffuse reflection, specular reflection, photoacoustic detection, and emission spectroscopy as well as data handling techniques. For some samples, multiple techniques were selected to obtain different information from the sample.