"The whole is only as good as its weakest element". When continuity of geosynthetic materials is under consideration the above statement must be directed toward seams. Due to the large planar extent of geosynthetics, seams are invariably the weakest element in all geosynthetic materials. Certainly, geomembrane seams are at the heart of solid waste and liquid containment systems. Their type, construction and inspection form a major part of this Book. All types of geomembrane seaming methods and inspection techniques are described and discussed so that comparisons can be made and proper selection can be realized. The seaming of drainage geonets and geocomposites are also addressed in the Book with the focus on continuity of flow. Seaming of geogrids and geotextiles are addressed with the focus of appropriate stress transfer from one sheet to another. The Seaming of Geosynthetics will be of particular interest to civil and geotechnical engineers, consulting and contracting companies and also geotextile manufacturers.