CLAMP is a creative group based in Japan composed of four women artists — Satsuki Igarashi, Nanase Ohkawa, Tsubaki Nekoi and Mokona.
The earliest activities of CLAMP are dated from the late 80s in the form of doujinshis (Japanese word for self published materials), back when the group was composed by 12 members. In 1989 they made their professional debut in the 3rd issue of South magazine with RG Veda. Some of their other works include Tokyo Babylon, X, Magic Knight Rayearth, Card Captor Sakura, Angelic Layer, Chobits, Tsubasa – RESERVoir CHRoNiCLE -, XXXHOLiC, Kobato. and GATE 7.
As of 2017, 100 million copies of original Japanese CLAMP mangas were sold and their works have been published in more than 20 countries including the United States of America, France, China and South Korea, in which 20 million copies were reportedly sold, exceeding 120 million copies sold worldwide. At one point, CLAMP was ranked at the 10th position on UNESCO’s ranking of Japanese authors with the biggest number of translated works (including novels). Most of their works have been adapted to some type of media, such as TV animation series, animation movies, original video animation (OVAs), music videos, live action TV series, CDs and video-games.
CLAMP are also involved on the creation of illustrations, book designs, essays, scriptwriting and character design for animation and video-games.
Currently, CLAMP are working on Card Captor Sakura Clear Card arc, which is being published monthly in Nakayoshi magazine.
The TV Anime adaptation of Card Captor Sakura Clear Card arc was broadcast on NHK BS Premium, NHK channels in Japan and worldwide via streaming services. CLAMP member Nanase Ohkawa was in charge of the scripts and series composition for the TV series, while Mokona was in charge of costume and card design.