Spotters or plane spotters are aviation and photography enthusiasts whose hobby involves photographing as many or as many rare types of aircraft as possible. They will go to great lengths for good shooting situations. The book by Alexander Becker serves as a classic notebook for spotters, where they can jot down all relevant information. The author also provides tips on equipment, proper photography techniques, and important behavioral guidelines, as not everyone is pleased with people at the airport fence wielding long telephoto lenses, especially in times of heightened terror threats.