Although not originally part of Michael Langford's classic 3-volume series (the respective titles were Langford's basic Photography, Langford's Intermediate Photography, and Langford's Advanced Photography) which were intended for the more serious photographer and possibly one with reasonably extensive experience of using a camera, this is now seen as the introduction to his series.
Langford was a lecturer in photography and highly respected. He was a very good author on the subject and his books were always, and are still, highly popular. His knowledge was extensive and he was easily able to transfer his knowledge to his books. He rarely, if ever, would ask a starting photographer to run before he could walk and he knew his subject and his market extremely well.
Since his death, any updates required due to the ever-rapid advancement of digital photography and the cameras we use have been made by an equally knowledgeable team so that the book remains reasonably current and valid.
An excellent introductory volume, I would highly recommend it to anyone starting photography and especially to a student starting a course at university or at art school.
If you should need a book that perhaps replaces or expands upon your camera's manual, this is not that book. Should you move to a more advanced camera or another brand, your current manual will then be of little use. But if you need general advice about the camera's different modes (which will change little from one brand to another), when to use different combinations of shutter speed and aperture and why, or perhaps hints about taking effective portraits or some other type of photo, using flash or even holding the camera, then it will fill that need. Consequently, the book is one that comes with the highest recommendation.