This book presents the concepts of three-dimensional geometry in a simple and lucid style within the realm of understanding of students of every genre. The matter has been arranged in such a way that even a beginner will find no difficulty in understanding and grasping the content of the book. The book covers most of the academic requirements of the various courses like B.A./B.Sc. (Hons) and pass courses of Indian universities. It will also be useful for engineering students and for those aspiring for other professional competitive examinations including IAS, IFS and PCS.