In this bookare collectedunder one coverbookletRav4Eider,in compactformsetting out thevarious aspects ofcompliance with the lawsof Passoverin theera of modern technology: 1.The lawsof chametz(leaven) and therequirements for foodfor Passover; 2.Preparation of thehome, kitchenand kitchen equipmentfor the Passover; 3.The search forchametz, itsextermination andsale; 4.ConductingPassover Seder.