“Essentials of Dental Radiography” by Orlen Johnson and Evelyn M. Thomson is a comprehensive textbook on dental radiography, focusing on the subject area of medical and allied health services. Published by Prentice Hall PTR in 2011, this trade paperback book is illustrated and written in English. With a total of 436 pages, this textbook covers essential topics related to dentistry and general radiography, making it a valuable resource for students and professionals in the field.