Occurrence of Gypsum; Calcium Sulfate Deposition Process; Types of Calcium Sulfate; EGYPTIAN GYPSUM DEPOSITS; PRODUCTION STEPS of Gypsum; CALCINATION OF GYPSUM; GYPSUM PLASTERS; Plaster of Paris; Hard Wall Plaster; Flooring, Hard Finish Plaster; PROPERTIES AND USES OF GYPSUM PLASTERS; Gypsum Board; Making Gypsum Board; The Modern Use of Gypsum in Construction: Plasterboard; Uses of Gypsum Products in Home Interiors; Plasterboards; Decorative Plaster; Building plaster; Plaster blocks; Gypsum based self levelling screeds; Gypsum Fibreboards; Gypsum Products Unique Properties; Fire Properties; Acoustic Properties; Thermal Properties; Aesthetics and Design; Ease of Installation; Gypsum Board Develop Over the Years; Gypsum Mine Production Globally; Market Study