The book in its fifty-sixth revised and enlarged edition provides all aspects and detailed study of Engineering Graphics or Engineering Drawing ? Plane and Solid Geometry, a core subject for all branches of Engineering study, presented in a lucid manner and easy-to-follow style. The text-book follows the first-angle method of orthographic projection, however, the third-angle projection method has not been completely ignored. The subject matter has been arranged in 26 chapters such as ? Drawing Instruments and Their Uses ? Sheet Layout and Free-Hand Sketching ? Lines, Lettering and Dimensioning ? Scales ? Geometrical Construction ? Curves Used in Engineering Practice ? Loci of Points ? Orthographic Projection ? Projections of Points ? Projections of Straight Lines ? Projections on Auxiliary Planes ? Projections of Planes ? Projections of Solids ?Sections of Solids ?Development of Surfaces ? Intersection of Surfaces ? Isometric Projection ? Oblique Projection ? Perspective Projection ? Orthographic Reading and Conversion of Views ? Centres of Gravity and Moments of Inertia of Areas ? Nomography ? Screw Threads ? Screwed Fastenings ? Riveted Joints and Welded Joints ? Computer Aided Drafting (CADr). Chapter 26 on Computer Aided Drafting (CADr) is entirely rewritten with inclusion of 52 self-interactive and self-learning practice modules. As a novel pedagogical concept, 51 audiovisual animation modules are presented through web-portal for better visualization and understanding of the subject. The solutions to exercises of Chapter 17, Isometric Projection and Chapter 20 Conversion of Views are given in this edition.