I am pleased to introduce the second edition of my book entitled “Radiology of Positioning for Technician” in current year (2018) after a gap of almost ten years of its first edition published by PeepeePublishers and Distributors (P) Ltd. New Delhi. This second edition will provide you much more detail about special procedure in conventional radiology with help of black / whitemachine picture and its result. Some new chapters on positron-emission-tomography CT Scan (PET–CT) B.M.D. (Bone densitometry) and digital subtractionangiography have been added. Now-a-days C.T. Scan and its allied development has contributed much more detail on PET–CT a new vista for those student pursuingCT–technician course which provides the job opportunity to great extent than before hence this edition will prove worthy for new generation student.I believe the 2nd edition of this book will be a boon to student pursuing technician course in Radiodiagnosis particularly CT Scan and PET–CT Scan and to some extent to diploma and Degree courseof medical student as well.