This video introduces Theory of Development of Solids and also explains Parallel Line Method of Development of Surfaces of Solids like Prisms and Cylinders in Engineering Drawing or Engineering Graphics. The Link for types of solids • Projections of solids basic concepts (part... The link for initial step • Projections of solids basic concepts (part... The link for basic concepts of sections of solids is • Sections of Solids (part 1) Basic Concepts... The link for sections of pyramids is • Sections of Solids (part 2) Sections of Py... The link for sections of prisms and cubes is • Sections of Solids (part 3) Sections of Pr...