Magic Knight Rayearth
Notable works by Clamp include "X" (1992), "Magic Knight Rayearth" (1993), "Cardcaptor Sakura" (1996), "Chobits" (2000), and "xxxHolic" and "" (both 2003). Clamp are noted as among the most critically and commercially acclaimed manga artists in Japan, and as of 2007, have sold nearly 100 million books worldwide.