Summary:
Clamp School Detectives, aka Clamp Campus Detectives is the story of three young boys who attend the Clamp School. Together, they act as the school's detectives, waging a war against any criminal element that might develop. A very cute saga, the manga and anime are intended for younger audiences.
The manga is available in English (see below) and the anime was available, English-subtitled on VHS, though it doesn't appear that the VHS version is currently being published. A DVD set will probably be released later. This is one of Clamp's earlier works. As of yet, I have not read the manga nor seen the anime.
Man of Many Faces is a prequel of sorts, dealing with Akira, the dark-haired member of the Detectives trio.

Best For:
All Ages

Contains:
Comedy, Action and Mystery

Read it: Buy the English translated manga: Vol. #1, Vol. #2 and Vol. #3.