For a graduate student who has not had an observational astronomy course, the process of self-teaching the essentials of CCD astronomy is not a smooth one. You really don't know what kind of things you have to worry about before going to a telescope!
Though this book does not cover comprehensively the topic of detection techniques in scientific contexts (too much for such a small book), it has an excellent, totally readable introduction to the basics of CCD detection in astronomy. The author obviously has been in the field for a long time, so his numerous anecdotes from his rich, past expericnes are entertaining as well as enlightening. It is such a short book but very satisfying, which is rare for a technical science book.
This book would make a perfect textbook or supplement reading for any decent undergraduate observational astronomy course. Highly recommended as the first reading for observers.