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The Thermoluminescence (TL)-like presentation method introduced to describe the isothermal decay of a thermoluminescence glow-peak, is extended in the present work for the case of the Optical Stimulated Luminescence (OSL) decay curves. The Glow-Curve Deconvolution analysis extensively used to analyse TL glow-curves is successfully applied to find the individual components of the Optical stimulated decay curves. The method is successfully applied to both synthetic and experimental OSL decay curves of quartz, feldspar and mixed quartz plus feldspar aliquots. The potential use of the Peak Shaped (PS) TL-like presentation to extract qualitative and quantitative information from an OSL decay curves is also discussed.