The engineer should develop his skill in two phases of technical drawing, first he must be able to draw clearly and rapidly, the freehand technical sketches, secondly, he must be proficient in drawing to scale the instrumental drawing. The purpose of this book is to give the basic principles of instrumental drawing only.This book covers the syllabus usually prescribed for Pre-engineering and First Year of the Degree and Diploma courses in Engineering and deals with fundamental principles of the basic subject keeping in view the difficulties of a beginner in the subject of Engineering Drawing. I am quite hopeful that this book will serve its purpose very well for young engineers.