The article starts with a very brief summary on the nature of the latent track in organic and inorganic detectors. The first real part deals with the chemical etching technique. The possible mechanisms involved in the track revealing processes are shortly described. Emphasis is then put on the technology of track etching. A very general procedure is described. Starting from this basis a study of each step is undertaken: conception and description of various etching baths, nature of the etchant according to the detector structure, influence of the etching parameters such as concentration, temperature, time, stirring, influence of interruptions in the process and of the reaction products. Typical examples are given. The sensitivity of the detectors depending on the etching technique is examined. Peculiar methods such as TINT, TINCLE, perforated detectors, multilayer detectors and thin foil techniques are described. One then makes an approach of the electrochemical etching under a very similar scheme: equipment, influence of the electrical field characteristics, nature and concentration of etchant, sensitivity. The second part of the paper deals with the so-called decoration techniques, namely, silver chloride crystals, fluorescent and/ or dyed detectors, silver precipitation in glasses. The latter is just mentioned whereas the two former techniques are described in more detail: the working principles are explained from the theoretical point of view, the technological behaviour and properties of those detectors are described together with their possible applications. The use of “mixed techniques” forms the conclusion of the part on track revealing. The last part of the text is devoted to the observation techniques of revealed tracks. All the detectors can be viewed under an optical microscope. The microscopy technique relevant to SSTND observations is described: light and dark field illumination, transmitted and reflected light, contrast enhancement techniques, special devices, etc. Eventually, the use of the transmission and stereo electron microscopes is considered and the specific fields of application of these techniques are reviewed.