The series is aimed at young readers ages 8 to 10 and appeals to both boys and girls. The books are rich in images and their stories straightforward so that especially first graders will like them. They also promote reading in general as there are no social, political or religious undertones. The series is designed to appeal to an international audience. The individual volumes do not build on each other so that there are no consecutive story lines. Who secretly rummages through uncle Titus’ garbage heaps? Every time, The Three ??? Kids are too late and left at a loss. When someone breaks into the house of a famous film director without leaving any traces, the three detectives know for certain: They are dealing with a master thief. Will they with the help of the readers be able to catch him anyway?